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Haplotype-resolved genome of Prunus zhengheensis provides insight into its evolution and low temperature adaptation in apricot

文献类型： 外文期刊

作者： Tan, Wei 1 ; Zhou, Pengyu 1 ; Huang, Xiao 1 ; Liao, Ruyu 2 ; Wang, Xiaoan 2 ; Wu, Yaoyao 1 ; Ni, Zhaojun 1 ; Shi, Ting 1 ; Yu, Xiaqing 1 ; Zhang, Huiqin 3 ; Ma, Chengdong 1 ; Gao, Feng 1 ; Ma, Yufan 1 ; Bai, Yang 1 ; Hayat, Faisal 4 ; Omondi, Ouma Kenneth 1 ; Coulibaly, Daouda 1 ; Gao, Zhihong 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Peoples R China

2.Fujian Acad Agr Sci, Inst Fruit, Fuzhou 350013, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Hort, Hangzhou 310021, Peoples R China

4.Zhongkai Univ Agr & Engn, Coll Hort, Dept Pomol, Guangzhou 510225, Peoples R China

5.Egerton Univ, Fac Agr, Dept Crops Hort & Soils, POB 536, Egerton 20115, Kenya

6.Rural Polytech Inst Training & Appl Res IPR IFRA K, Dept Agr Sci & Tech Hort, BP224, Koulikoro, Mali

期刊名称：HORTICULTURE RESEARCH （ 影响因子：8.7； 五年影响因子：9.0 ）

ISSN： 2662-6810

年卷期： 2024 年 11 卷 4 期

页码：

收录情况： SCI

摘要： Prunus zhengheensis, an extremely rare population of apricots, originated in warm South-East China and is an excellent material for genetic breeding. However, most apricots and two related species (P. sibirica, P. mandshurica) are found in the cold northern regions in China and the mechanism of their distribution is still unclear. In addition, the classification status of P. zhengheensis is controversial. Thus, we generated a high-quality haplotype-resolved genome for P. zhengheensis, exploring key genetic variations in its adaptation and the causes of phylogenetic incongruence. We found extensive phylogenetic discordances between the nuclear and organelle phylogenies of P. zhengheensis, which could be explained by incomplete lineage sorting. A 242.22-Mb pan-genome of the Armeniaca section was developed with 13 chromosomal genomes. Importantly, we identified a 566-bp insertion in the promoter of the HSFA1d gene in apricot and showed that the activity of the HSFA1d promoter increased under low temperatures. In addition, HSFA1d overexpression in Arabidopsis thaliana indicated that HSFA1d positively regulated plant growth under chilling. Therefore, we hypothesized that the insertion in the promoter of HSFA1d in apricot improved its low-temperature adaptation, allowing it to thrive in relatively cold locations. The findings help explain the weather adaptability of Armeniaca plants.

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