遗传学报2024，Vol.51Issue(10) ：1089-1100.DOI:10.1016/j.jgg.2024.04.010

Dosage effect genes modulate grain development in synthesized Triticum durum-Haynaldia villosa allohexaploid

Zhongyu Yu Baofeng Cui Jin Xiao Wu Jiao Haiyan Wang Zongkuan Wang Li Sun Qingxin Song Jingya Yuan Xiue Wang
遗传学报2024，Vol.51Issue(10) ：1089-1100.DOI:10.1016/j.jgg.2024.04.010
✕
  • 维普
  • 万方数据

Dosage effect genes modulate grain development in synthesized Triticum durum-Haynaldia villosa allohexaploid

Zhongyu Yu 1Baofeng Cui 1Jin Xiao 1Wu Jiao 1Haiyan Wang 1Zongkuan Wang 1Li Sun 1Qingxin Song 1Jingya Yuan 1Xiue Wang1
扫码查看

作者信息

  • 1. State Key Lab of Crop Genetics & Germplasm Enhancement and Utilization,Cytogenetics Institute,Nanjing Agricultural University/JCIC-MCP/Zhongshan Biological Breeding Laboratory,Nanjing,Jiangsu 210095,China
  • 折叠

Abstract

Polyploidization in plants often leads to increased cell size and grain size,which may be affected by the increased genome dosage and transcription abundance.The synthesized Triticum durum(AABB)-Hay-naldia villosa(VV)amphiploid(AABBVV)has significantly increased grain size,especially grain length,than the tetraploid and diploid parents.To investigate how polyploidization affects grain development at the transcriptional level,we perform transcriptome analysis using the immature seeds of T.durum,H.villosa,and the amphiploid.The dosage effect genes are contributed more by differentially expressed genes from genome V of H.villosa.The dosage effect genes overrepresent grain development-related genes.Inter-estingly,the vernalization gene TaVRN1 is among the positive dosage effect genes in the T.durum-H.villosa and T.turgidum-Ae.tauschii amphiploids.The expression levels of TaVRN1 homologs are positively correlated with the grain size and weight.The TaVRN1-B1 or TaVRN1-D1 mutation shows delayed florescence,decreased cell size,grain size,and grain yield.These data indicate that dosage effect genes could be one of the important explanations for increased grain size by regulating grain development.The identification and functional validation of dosage effect genes may facilitate the finding of valuable genes for improving wheat yield.

Key words

Allopolyploid/Polyploidization/Dosage effect/Wheat/Grain size/TaVRN1

引用本文复制引用

基金项目

National Key Research and Development Program of China(2022YFF1002900)

National Key Research and Development Program of China(2020YFE0202900)

National Natural Science Foundation of China(32270576)

Jiangsu Provincial Key Research and Development Program(BE2022346)

Seed Industry Revitalization Project of Jiangsu Province(JBGS[2021]006)

Seed Industry Revitalization Project of Jiangsu Province(JBGS[2021]013)

Jiangsu Agricultural Technology System(JATS[2023]422)

Joint Research of Wheat Variety Improvement of Anhui,and Zhongshan Biological Breeding Laboratory(ZSBBL)(ZSBBL-KY2023-02-2)

出版年

2024
遗传学报
中国遗传学会 中国科学院遗传与发育生物学研究所

遗传学报

CSTPCDCSCD
影响因子：0.821
ISSN：1673-8527
参考文献量72
段落导航相关论文