Pan-genome and phylogenomic analyses highlight Hevea species delineation and rubber trait evolution
文献类型： 外文期刊
作者： Fang, Yongjun 1 ; Xiao, Xiaohu 1 ; Lin, Jishan 2 ; Lin, Qiang 3 ; Wang, Jiang 2 ; Liu, Kaiye 2 ; Li, Zhonghua 2 ; Xing, Jianfeng 2 ; Liu, Zhenglin 2 ; Wang, Baiyu 6 ; Qi, Yiying 8 ; Long, Xiangyu 1 ; Zeng, Xia 1 ; Hu, Yanshi 1 ; Qi, Jiyan 2 ; Qin, Yunxia 1 ; Yang, Jianghua 1 ; Zhang, Yi 2 ; Zhang, Shengmin 2 ; Ye, De 2 ; Zhang, Jisen 6 ; Liu, Jianquan 9 ; Tang, Chaorong 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Natl Key Lab Trop Crop Breeding, Sanya Haikou, Peoples R China
2.Hainan Univ, Sanya Inst Breeding & Multiplicat, Sanya, Peoples R China
3.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen, Peoples R China
4.Nat Rubber Cooperat Innovat Ctr Hainan Prov, Haikou, Hainan, Peoples R China
5.Minist Educ PRC, Haikou, Hainan, Peoples R China
6.Guangxi Univ, State Key Lab Conservat & Utilizat Subtrop AgroBi, Nanning, Peoples R China
7.Guangxi Univ, Guangxi Key Lab Sugarcane Biol, Nanning, Peoples R China
8.Fujian Agr & Forestry Univ, Coll Agr, Natl Engn Res Ctr Sugarcane, Fuzhou, Peoples R China
9.Lanzhou Univ, Coll Ecol, State Key Lab Grassland Agroecosyst, Lanzhou, Peoples R China
10.Yunnan Inst Trop Crops, Xishuangbanna, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）
ISSN：
年卷期： 2024 年 15 卷 1 期
页码：
收录情况： SCI
摘要： The para rubber tree (Hevea brasiliensis) is the world's sole commercial source of natural rubber, a vital industrial raw material. However, the narrow genetic diversity of this crop poses challenges for rubber breeding. Here, we generate high-quality de novo genome assemblies for three H. brasiliensis cultivars, two H. brasiliensis wild accessions, and three other Hevea species (H. nitida, H. pauciflora, and H. benthamiana). Through analyzing genomes of 94 Hevea accessions, we identify five distinct lineages that do not align with their previous species delineations. We discover multiple accessions with hybrid origins between these lineages, indicating incomplete reproductive isolation between them. Only two out of four wild lineages have been introduced to commercial rubber cultivars. Furthermore, we reveal that the rubber production traits emerged following the development of a large REF/SRPP gene cluster and its functional specialization in rubber-producing laticifers within this genus. These findings would enhance rubber breeding and benefit research communities.
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