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Genome-wide meta-analysis of QTL for morphological related traits of flag leaf in bread wheat

Author

Listed:
  • Binbin Du
  • Jia Wu
  • Md Samiul Islam
  • Chaoyue Sun
  • Baowei Lu
  • Peipei Wei
  • Dong Liu
  • Cunwu Chen

Abstract

Flag leaf is an important organ for photosynthesis of wheat plants, and a key factor affecting wheat yield. In this study, quantitative trait loci (QTL) for flag leaf morphological traits in wheat reported since 2010 were collected to investigate the genetic mechanism of these traits. Integration of 304 QTLs from various mapping populations into a high-density consensus map composed of various types of molecular markers as well as QTL meta-analysis discovered 55 meta-QTLs (MQTL) controlling morphological traits of flag leaves, of which 10 MQTLs were confirmed by GWAS. Four high-confidence MQTLs (MQTL-1, MQTL-11, MQTL-13, and MQTL-52) were screened out from 55 MQTLs, with an average confidence interval of 0.82 cM and a physical distance of 9.4 Mb, according to the definition of hcMQTL. Ten wheat orthologs from rice (7) and Arabidopsis (3) that regulated leaf angle, development and morphogenesis traits were identified in the hcMQTL region using comparative genomics, and were speculated to be potential candidate genes regulating flag leaf morphological traits in wheat. The results from this study provides valuable information for fine mapping and molecular markers assisted selection to improve morphological characters in wheat flag leaf.

Suggested Citation

  • Binbin Du & Jia Wu & Md Samiul Islam & Chaoyue Sun & Baowei Lu & Peipei Wei & Dong Liu & Cunwu Chen, 2022. "Genome-wide meta-analysis of QTL for morphological related traits of flag leaf in bread wheat," PLOS ONE, Public Library of Science, vol. 17(10), pages 1-19, October.
    • Handle: RePEc:plo:pone00:0276602
    DOI: 10.1371/journal.pone.0276602
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    1. Andrés Ritter & Sabrina Iñigo & Patricia Fernández-Calvo & Ken S. Heyndrickx & Stijn Dhondt & Hua Shi & Liesbeth De Milde & Robin Vanden Bossche & Rebecca De Clercq & Dominique Eeckhout & Mily Ron & D, 2017. "The transcriptional repressor complex FRS7-FRS12 regulates flowering time and growth in Arabidopsis," Nature Communications, Nature, vol. 8(1), pages 1-14, August.
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    1. Binbin Du & Jia Wu & Qingming Wang & Chaoyue Sun & Genlou Sun & Jie Zhou & Lei Zhang & Qingsong Xiong & Xifeng Ren & Baowei Lu, 2024. "Genome-wide screening of meta-QTL and candidate genes controlling yield and yield-related traits in barley (Hordeum vulgare L.)," PLOS ONE, Public Library of Science, vol. 19(5), pages 1-20, May.

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