<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019d73f0-fb6f-7571-a422-7f2879b086d4,g:d9b2234a-7e07-46d7-9131-f2b4df505120-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskReturn" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskReturn"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/RiskReturn" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/FeesAndExpenses" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#FeesAndExpenses"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/FeesAndExpenses" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/ShareholderFeesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderFeesData"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ShareholderFeesData" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071807Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071807Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071807Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071808Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071808Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071808Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071805Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071805Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071805Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000190075Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000190075Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000190075Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#OperatingExpensesData"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071807Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071807Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071807Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071808Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071808Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071808Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071805Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071805Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071805Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000190075Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000190075Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000190075Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/ExpenseExample" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ExpenseExample"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExample" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071807Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071807Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071807Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071808Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071808Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071808Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071805Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071805Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071805Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000190075Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000190075Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000190075Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ExpenseExampleNoRedemption"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071808Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071808Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071808Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/InvestmentStrategy" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#InvestmentStrategy"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/InvestmentStrategy" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/InvestmentRisks" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#InvestmentRisks"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/InvestmentRisks" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_AllRisksMember" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AllRisksMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_oef_RiskLoseMoneyMember" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_RiskLoseMoneyMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_oef_RiskLoseMoneyMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_oef_RiskNotInsuredDepositoryInstitutionMember" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_RiskNotInsuredDepositoryInstitutionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_oef_RiskNotInsuredDepositoryInstitutionMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_BankLoansRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_BankLoansRiskMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_BankLoansRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_CounterpartyRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_CounterpartyRiskMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_CounterpartyRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_DerivativesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_DerivativesRiskMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_DerivativesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_DerivativesRiskCreditDefaultSwapsRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_DerivativesRiskCreditDefaultSwapsRiskMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_DerivativesRiskCreditDefaultSwapsRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_DerivativesRiskCurrencyContractsRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_DerivativesRiskCurrencyContractsRiskMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_DerivativesRiskCurrencyContractsRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_DerivativesRiskForwardContractsFuturesAndSwapsRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_DerivativesRiskForwardContractsFuturesAndSwapsRiskMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_DerivativesRiskForwardContractsFuturesAndSwapsRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_EmergingMarketsRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_EmergingMarketsRiskMember"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_EmergingMarketsRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_FixedIncomeSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_FixedIncomeSecuritiesRiskMember"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_FixedIncomeSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_FloatingAndVariableRateSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_FloatingAndVariableRateSecuritiesRiskMember"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_FloatingAndVariableRateSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_ForeignCurrencyRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_ForeignCurrencyRiskMember"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_ForeignCurrencyRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_ForeignSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_ForeignSecuritiesRiskMember"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_ForeignSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_HedgingRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_HedgingRiskMember"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_HedgingRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_HighPortfolioTurnoverRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_HighPortfolioTurnoverRiskMember"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_HighPortfolioTurnoverRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_HighYieldSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_HighYieldSecuritiesRiskMember"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_HighYieldSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_InvestmentCompanySecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_InvestmentCompanySecuritiesRiskMember"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_InvestmentCompanySecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_PortfolioDurationRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_PortfolioDurationRiskMember"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_PortfolioDurationRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_PreferredSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_PreferredSecuritiesRiskMember"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_PreferredSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_RedemptionAndLargeTransactionRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_RedemptionAndLargeTransactionRiskMember"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_RedemptionAndLargeTransactionRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_SecuritizedProductsRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_SecuritizedProductsRiskMember"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_SecuritizedProductsRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_SovereignDebtRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_SovereignDebtRiskMember"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_SovereignDebtRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_USGovernmentSecuritiesRiskMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_USGovernmentSecuritiesRiskMember"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0000898745_USGovernmentSecuritiesRiskMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/PerformanceManagement" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceManagement"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/PerformanceManagement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/PerformanceTableData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceTableData"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/PerformanceTableData" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071807Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071807Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071807Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071808Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071808Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071808Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071805Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071805Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071805Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000190075Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000190075Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000190075Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_oef_PerformanceMeasureDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_PerformanceMeasureDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_BloombergUSAggregateIndexReflectsNoDeductionForFeesExpensesOrTaxesIndexMember" xlink:href="ck0000898745-20260825.xsd#ck0000898745_BloombergUSAggregateIndexReflectsNoDeductionForFeesExpensesOrTaxesIndexMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_PerformanceMeasureDomain" xlink:to="loc_ck0000898745_BloombergUSAggregateIndexReflectsNoDeductionForFeesExpensesOrTaxesIndexMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/BarChartData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BarChartData"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/rr/role/BarChartData" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_C000071807Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_C000071807Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0000898745_C000071807Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000898745_S000024296Member" xlink:href="ck0000898745-20260825.xsd#ck0000898745_S000024296Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0000898745_S000024296Member" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
</link:linkbase>
