Genome-Wide Novel Genic Microsatellite Marker Resource Development and Validation for Genetic Diversity and Population Structure Analysis of Banana
文献类型： 外文期刊
作者： Biswas, Manosh Kumar 1 ; Bagchi, Mita 2 ; Biswas, Dhiman 4 ; Harikrishna, Jennifer Ann 2 ; Liu, Yuxuan 1 ; Li, Chun 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
2.Univ Leicester, Dept Genet, Leicester LE1 7RH, Leics, England
3.South China Agr Univ, Coll Econ & Managements, Guangzhou 510640, Peoples R China
4.Maulana Abul Kalam Azad Univ Technol, Dept Comp Sci & Engn, Kolkata 700064, W Bengal, India
5.Univ Malaya, Kuala Lumpur 50603, Malaysia
6.Forsch Museum Alexander Koenig, Adenauerallee 160, D-53113 Bonn, Germany
关键词： Musa spp; comparative mapping; functional domain; SSR markers
期刊名称：GENES （ 影响因子：4.096； 五年影响因子：4.339 ）
ISSN：
年卷期： 2020 年 11 卷 12 期
页码：
收录情况： SCI
摘要： Trait tagging through molecular markers is an important molecular breeding tool for crop improvement. SSR markers encoded by functionally relevant parts of a genome are well suited for this task because they may be directly related to traits. However, a limited number of these markers are known for Musa spp. Here, we report 35136 novel functionally relevant SSR markers (FRSMs). Among these, 17,561, 15,373 and 16,286 FRSMs were mapped in-silico to the genomes of Musa acuminata, M. balbisiana and M. schizocarpa, respectively. A set of 273 markers was validated using eight accessions of Musa spp., from which 259 markers (95%) produced a PCR product of the expected size and 203 (74%) were polymorphic. In-silico comparative mapping of FRSMs onto Musa and related species indicated sequence-based orthology and synteny relationships among the chromosomes of Musa and other plant species. Fifteen FRSMs were used to estimate the phylogenetic relationships among 50 banana accessions, and the results revealed that all banana accessions group into two major clusters according to their genomic background. Here, we report the first large-scale development and characterization of functionally relevant Musa SSR markers. We demonstrate their utility for germplasm characterization, genetic diversity studies, and comparative mapping in Musa spp. and other monocot species. The sequences for these novel markers are freely available via a searchable web interface called Musa Marker Database.
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