期刊
PHYSIOLOGIA PLANTARUM
卷 166, 期 1, 页码 105-119出版社
WILEY
DOI: 10.1111/ppl.12957
关键词
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资金
- Chinese Academy of Sciences Strategic Research Project
The maximum quantum yield of photosystem II (as reflected by variable to maximum chlorophyll a fluorescence, F-v/F-m) is regarded as one of the most important photosynthetic parameters. The genetic basis underlying natural variation in F-v/F-m, which shows low level of variations in plants under non-stress conditions, is not easy to be exploited using the conventional gene cloning approaches. Thus, in order to answer this question, we have followed another strategy: we used genome-wide association study (GWAS) and transgenic analysis in a rice mini-core collection. We report here that four single-nucleotide polymorphisms, located in the promoter region of -glucosidase 5 (BGlu-5), are associated with observed variation in F-v/F-m. Indeed, our transgenic analysis showed a good correlation between BGlu-5 and F-v/F-m. Thus, our work demonstrates the feasibility of using GWAS to study natural variation in F-v/F-m, suggesting that cis-element polymorphism, affecting the BGlu-5 expression level, may, indirectly, contribute to F-v/F-m variation in rice through the gibberellin signaling pathway. Further research is needed to understand the mechanism of our novel observation.
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