Combined genome‐wide association study and epistasis analysis reveal multifaceted genetic architectures of plant height in Asian cultivated rice

Hong, J G; Su, Su; Wang, Li; Bai, Shaoxing; Xu, Jianlong; Li, Zhikang; Betts, Natalie S.; Liang, Wanqi; Wang, Wensheng; Shi, Jiannong; Zhang, Dabing

doi:10.1111/pce.14557

Cited by 10 publications

(6 citation statements)

References 87 publications

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“…Moreover, we performed transient assay in protoplast, and showed that OsWRKY78 can efficiently activate the expression of OsGA20ox‐1, OsGA20ox‐3, OsGA3ox‐1 , but did not regulate the expression of OsGA2ox‐3 and OsGA2ox‐4 (Figures 4D–F, S7). In addition, to investigate how OsWRKY78 indirectly regulates OsGA2ox‐3 and OsGA2ox‐4 , we examined the expression of the published upstream regulator of GA metabolism genes, including OsHOX12, OsMADS56 , and OsMADS57 (Chu et al, 2019; Gao et al, 2016; Hong et al, 2023), and found they show similar expressions between WT and oswrky78 (Figure S8). Finally, to provide the genetic evidence of OsWRKY78 regulating GA biosynthesis, we chose OsGA20ox‐1 as representative and generated OsGA20ox‐1 overexpression plants in both WT and oswrky78 backgrounds (Figure 4G, H).…”

Section: Resultsmentioning

confidence: 99%

OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice

Mei,

He,

et al. 2024

JIPB

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Panicle exsertion is one of the crucial agronomic traits in rice (Oryza sativa). Shortening of panicle exsertion often leads to panicle enclosure and severely reduces seed production. Gibberellin (GA) plays important roles in regulating panicle exsertion. However, the underlying mechanism and the relative regulatory network remain elusive. Here, we characterized the oswrky78 mutant showing severe panicle enclosure, and found that the defect of oswrky78 is caused by decreased bioactive GA contents. Biochemical analysis demonstrates that OsWRKY78 can directly activate GA biosynthesis and indirectly suppress GA metabolism. Moreover, we found OsWRKY78 can interact with and be phosphorylated by mitogen‐activated protein kinase (MAPK) kinase OsMAPK6, and this phosphorylation can enhance OsWRKY78 stability and is necessary for its biological function. Taken together, these results not only reveal the critical function of OsWRKY78, but also reveal its mechanism via mediating crosstalk between MAPK and the GA signaling pathway in regulating panicle exsertion.

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Section: Resultsmentioning

confidence: 99%

OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice

Mei,

He,

et al. 2024

JIPB

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“…The analyses of physiological effects of natural variation in seed glycerolipids are still ongoing in this group. Hong, Su, et al (2023) also performed GWAS on plant height in whole 619 populations and in three japonica subpopulations with different SD1 haplotypes after the effect of SD1 is fixed, and revealed multifaceted genetic architectures of plant height in rice, and identified two sets of QTL epistatic interactive networks in the subgroup harboring Nipponbare‐specific SD1 haplotype are found to be multieffective QTL/genes, participating as well in flowering, which links plant height QTL/genes with adaptive events such as flowering in japonica rice (Hong, Su, et al, 2023), reflecting association of plant height trait with different environmental adaptation events particularly in japonica subpopulations.…”

Section: Natural Variations In Rice Resiliencementioning

confidence: 99%

Prospects for rice in 2050

Shi

Weber

et al. 2023

Plant Cell & Environment

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A key to achieve the goals put forward in the UN's 2030 Agenda for Sustainable Development, it will need transformative change to our agrifood systems. We must mount to the global challenge to achieve food security in a sustainable manner in the context of climate change, population growth, urbanization, and depletion of natural resources. Rice is one of the major staple cereal crops that has contributed, is contributing, and will still contribute to the global food security. To date, rice yield has held pace with increasing demands, due to advances in both fundamental and biological studies, as well as genomic and molecular breeding practices. However, future rice production depends largely on the planting of resilient cultivars that can acclimate and adapt to changing environmental conditions. This Special Issue highlight with reviews and original research articles the exciting and growing field of rice‐environment interactions that could benefit future rice breeding. We also outline open questions and propose future directions of 2050 rice research, calling for more attentions to develop environment‐resilient rice especially hybrid rice, upland rice and perennial rice.

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“…The past few years have seen a remarkable acceleration in our understanding of the intricate interplay between complex traits and the molecular mechanisms driving them. Researchers worldwide have delved deeply into the genetic architectures of key annual crops [7,8], unearthing novel insights into yield potential [9,10], stress tolerance [10,11], and nutritional quality [12,13]. Some researchers have constructed various mapping groups to analyze the genetic mechanisms of complex traits, such as F 2 populations [14], RIL populations [15], NAM populations [16], MAGIC populations [17], CUBIC populations [18], etc.…”

Section: Introductionmentioning

confidence: 99%