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<p>The Karnal bunt (KB) caused by <i>Tilletia indica</i> is an internationally quarantine-significant disease of wheat. The disease can be effectively managed by harnessing genetic resistance in wild and related wheat species. Thus, in the present study a set of 206 introgression lines derived from wheat progenitors (<i>Triticum monococcum</i>, <i>Aegilops tauschii</i>, <i>T. dicoccoides</i>) and non-progenitors (<i>T. araraticum, Ae. triuncialis</i>) was screened for KB resistance during cropping seasons 2021–2022 and 2022–2023. Out of the 142 introgression lines derived from progenitor wheat species, 11 lines derived from <i>T. monococcum</i> were found to be completely resistant while two (<i>T. dicoccoides</i> 360/<i>Ae. Tauschii </i>9783//PBW 730/3/PBW 671-1, PDW 233/<i>Ae. tauschii</i> 14119//PBW 729/3/PBW 730-3) derived from <i>T. dicoccoides</i> and <i>Ae. tauschii</i> displayed a high level of KB resistance. Furthermore, out of 64 introgression lines derived from non-progenitors, thirteen lines derived from <i>Ae. triuncialis</i> exhibited completely resistant reactions. Additionally, two lines derived from <i>T. araraticum</i> exhibited the highest resistance. The majority of the lines derived from <i>T. monococcum</i> and <i>Ae. triuncialis</i> exhibited resistance against <i>T. indica</i>. Thus, these identified introgressions derived from both wheat progenitor and non-progenitor are promising KB resistance donors and can be utilized further for developing disease resistant cultivars.</p>

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Exploring progenitor and non-progenitor derived wheat introgressions for Karnal bunt resistance

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • Anju Grace George,
  • Ritu Bala,
  • Vineet Kumar Sharma,
  • Habiburahman Ayoubi,
  • Divya Bhandhari,
  • Puja Srivastava,
  • Jaspal Kaur,
  • Yogita Bohra,
  • Satinder Kaur

摘要

The Karnal bunt (KB) caused by Tilletia indica is an internationally quarantine-significant disease of wheat. The disease can be effectively managed by harnessing genetic resistance in wild and related wheat species. Thus, in the present study a set of 206 introgression lines derived from wheat progenitors (Triticum monococcum, Aegilops tauschii, T. dicoccoides) and non-progenitors (T. araraticum, Ae. triuncialis) was screened for KB resistance during cropping seasons 2021–2022 and 2022–2023. Out of the 142 introgression lines derived from progenitor wheat species, 11 lines derived from T. monococcum were found to be completely resistant while two (T. dicoccoides 360/Ae. Tauschii 9783//PBW 730/3/PBW 671-1, PDW 233/Ae. tauschii 14119//PBW 729/3/PBW 730-3) derived from T. dicoccoides and Ae. tauschii displayed a high level of KB resistance. Furthermore, out of 64 introgression lines derived from non-progenitors, thirteen lines derived from Ae. triuncialis exhibited completely resistant reactions. Additionally, two lines derived from T. araraticum exhibited the highest resistance. The majority of the lines derived from T. monococcum and Ae. triuncialis exhibited resistance against T. indica. Thus, these identified introgressions derived from both wheat progenitor and non-progenitor are promising KB resistance donors and can be utilized further for developing disease resistant cultivars.