College of Agronomy, Anhui Agricultural University, Hefei 230036, China.
Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China.
Int J Mol Sci. 2022 Apr 5;23(7):4016. doi: 10.3390/ijms23074016.
Drought and salinity stresses are significant abiotic factors that limit rice yield. Exploring the co-response mechanism to drought and salt stress will be conducive to future rice breeding. A total of 1748 drought and salt co-responsive genes were screened, most of which are enriched in plant hormone signal transduction, protein processing in the endoplasmic reticulum, and the MAPK signaling pathways. We performed gene-coding sequence haplotype (gcHap) network analysis on nine important genes out of the total amount, which showed significant differences between the / and / population. These genes were combined with related pathways, resulting in an interesting mechanistic draft called the 'gcHap-network pathway'. Meanwhile, we collected a lot of drought and salt breeding varieties, especially the introgression lines (ILs) with HHZ as the parent, which contained the above-mentioned nine genes. This might imply that these ILs have the potential to improve the tolerance to drought and salt. In this paper, we focus on the relationship of drought and salt co-response gene gcHaps and their related pathways using a novel angle. The haplotype network will be helpful to explore the desired haplotypes that can be implemented in haplotype-based breeding programs.
干旱和盐胁迫是限制水稻产量的重要非生物因素。探索对干旱和盐胁迫的共同响应机制将有助于未来的水稻育种。共筛选到 1748 个干旱和盐协同响应基因，这些基因主要富集在植物激素信号转导、内质网蛋白加工和 MAPK 信号通路中。我们对总量中的 9 个重要基因进行了基因编码序列单倍型（gcHap）网络分析，结果表明在 / 和 / 群体之间存在显著差异。这些基因与相关途径相结合，形成了一个有趣的机制草案，称为“gcHap-网络途径”。同时，我们收集了大量的抗旱和耐盐品种，特别是以 HHZ 为亲本的导入系（ILs），其中包含上述 9 个基因。这可能意味着这些 ILs 具有提高抗旱和耐盐性的潜力。本文从一个新的角度关注了干旱和盐协同响应基因 gcHaps 及其相关途径之间的关系。单倍型网络将有助于探索可以在基于单倍型的育种计划中实施的所需单倍型。
