首页|TaSRO1 interacts with TaVP1 to modulate seed dormancy and pre-harvest sprouting resistance in wheat

TaSRO1 interacts with TaVP1 to modulate seed dormancy and pre-harvest sprouting resistance in wheat

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Dormancy is an adaptive trait which prevents seeds from germinating under unfavorable envi-ronmental conditions.Seeds with weak dormancy undergo pre-harvest sprouting(PHS)which de-creases grain yield and quality.Understanding the genetic mechanisms that regulate seed dormancy and resistance to PHS is crucial for ensuring global food security.In this study,we illustrated the function and molecular mechanism of TaSRO1 in the regulation of seed dormancy and PHS resist-ance by suppressing TaVP1.The tasro1 mutants exhibited strong seed dormancy and enhanced resistance to PHS,whereas the mutants of tavp1 displayed weak dormancy.Genetic evidence has shown that TaVP1 is epistatic to TaSRO1.Bio-chemical evidence has shown that TaSRO1 inter-acts with TaVP1 and represses the transcriptional activation of the PHS resistance genes TaPHS1 and TaSdr.Furthermore,TaSRO1 undermines the synergistic activation of TaVP1 and TaABI5 in PHS resistance genes.Finally,we highlight the great potential of tasro1 alleles for breeding elite wheat cultivars that are resistant to PHS.

wheatseed dormancypre-harvest sprouting(PHS)ABA signalingvivipary

Shupeng Liu、Li Li、Wenlong Wang、Guangmin Xia、Shuwei Liu

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Key Laboratory of Plant Development and Environmental Adaptation Biology,Ministry of Education,School of Life Science,Shandong University,Qingdao 266237,China

Natural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong ProvinceNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaAgricultural Variety Improvement Project of Shandong ProvinceNational Key R&D Program of China

ZR2019ZD16ZR2020JQ1432171935U19062022022LZGC0022022YFD1201700

2024

10.1111/jipb.13600

植物学报(英文版)
中国植物学会

植物学报(英文版)

CSTPCD
影响因子：0.921
ISSN：1672-9072
年,卷(期)：2024.66(1)
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