文献类型： 外文期刊
作者： Hu, Xiaoli 1 ; Li, Yubo 1 ; Tan, Shibei 1 ; Chen, Lisha 4 ; Mkapa, Dietram Samson 1 ; Lin, Chen 6 ; Liu, Qingqing 6 ; Jin, Gang 7 ; Chen, Tao 7 ; Qin, Xu 7 ; Yi, Kexian 8 ; Huang, Xing 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Natl Key Lab Trop Crop Breeding, Haikou 571101, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China
3.Hainan Univ, Sch Trop Agr & Forestry, Danzhou 571737, Peoples R China
4.Minist Agr & Rural Affairs, Qual Inspect & Testing Ctr Sisal Prod, Zhanjiang 524000, Peoples R China
5.Tanzania Agr Res Inst TARI, Mlingano Ctr, POB 5088, Tanga, Tanzania
6.Shanghai Chenshan Bot Garden, Shanghai Key Lab Plant Funct Genom & Resources, Shanghai 201602, Peoples R China
7.Guangxi Subtrop Crops Res Inst, Nanning 530001, Peoples R China
8.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China
9.Minist Agr & Rural Affairs, Key Lab Integrated Pest Management Trop Crops, Haikou 571101, Peoples R China
10.Hainan Key Lab Monitoring & Control Trop Agr Pests, Haikou 571101, Peoples R China
关键词： agave germplasms; population structure; genetic diversity; genetic differentiation; amplicon sequencing; SNP; phylogeny
期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）
ISSN：
年卷期： 2025 年 15 卷 3 期
页码：
收录情况： SCI
摘要： Agave hybrid cultivar 11,648 has been planted for sisal fiber production in China since the 1960s. However, little is known about the population structure and genetic diversity of agave germplasms in China. Therefore, we developed a group of core SNP markers to evaluate the population structure and genetic diversity of 125 agave germplasms in China, including 20 cultivars, 14 breeding lines, and 89 transplanted resources from different areas. Cost-effective amplicon sequencing technology was used to identify genetic variants. The results grouped most cultivars and breeding lines together, which indicated that local agave breeding programs aimed to improve fiber and disease-resistance traits. These breeding programs have reduced genetic diversity, even with the gene flows from other Agave species. The neighbor-joining phylogenetic tree revealed the relationships between A. H11648 and its parents. The phylogenetic relationship between A. sisalana and A. amanuensis is doubtful, even if they are considered heterotypic synonyms. The 11 agave germplasms introduced from Mexico suggest the abundant diversity of agave germplasms in Mexico, which is also the source of agave germplasms in China. This study provides a sketch map for agave germplasms in China, which will benefit future studies related to population genetics and breeding works of agave.
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