QNE1 is a key flowering regulator determining the length of the vegetative period in soybean cultivars
| 第一作者： |
Xia, Zhengjun |
| 英文第一作者： |
Xia, Zhengjun |
| 联系作者： |
Xia, Zhengjun |
| 英文联系作者： |
Xia, Zhengjun |
| 发表年度： |
2022 |
| 卷： |
|
| 摘要： |
The soybean E1 gene is a major regulator that plays an important role in flowering time and maturity. However, it remains unclear how cultivars carrying the dominant E1 allele adapt to the higher latitudinal areas of northern China. We mapped the novel quantitative trait locus QNE1 (QTL near E1) for flowering time to the region proximal to E1 on chromosome 6 in two mapping populations. Positional cloning revealed Glyma.06G204300, encoding a TCP-type transcription factor, as a strong candidate gene for QNE1. Association analysis further confirmed that functional single nucleotide polymorphisms (SNPs) at nucleotides 686 and 1,063 in the coding region of Glyma.06G204300 were significantly associated with flowering time. The protein encoded by the candidate gene is localized primarily to the nucleus. Furthermore, soybean and Brassica napus plants overexpressing Glyma.06G204300 exhibited early flowering. We conclude that despite their similar effects on flowering time, QNE1 and E4 may control flowering time through different regulatory mechanisms, based on expression studies and weighted gene co-expression network analysis of flowering time-related genes. Deciphering the molecular basis of QNE1 control of flowering time enriches our knowledge of flowering gene networks in soybean and will facilitate breeding soybean cultivars with broader latitudinal adaptation. |
| 刊物名称： |
Science China-Life Sciences |
| 参与作者： |
Z. J. Xia, H. Zhai, Y. F. Zhang, Y. Y. Wang, L. Wang, K. Xu, H. Y. Wu, J. L. Zhu, S. Jiao, Z. Wan, X. B. Zhu, Y. Gao, Y. X. Liu, R. Fan, S. H. Wu, X. Chen, J. Y. Liu, J. Y. Yang, Q. J. Song |
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