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Genetic Diversity and Population Structure of a Longan Germplasm in Thailand Revealed by Genotyping-By-Sequencing (GBS)
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Document Title
Genetic Diversity and Population Structure of a Longan Germplasm in Thailand Revealed by Genotyping-By-Sequencing (GBS)
Author
Riangwong K., Saensuk C., Pitaloka M.K., Dumhai R., Ruanjaichon V., Toojinda T., Wanchana S., Arikit S.
Affiliations
Department of Biotechnology, Faculty of Engineering and Industrial Technology, Silpakorn University, Sanamchandra Palace Campus, Nakhon Pathom, 73000, Thailand; Rice Science Center, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand; National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand; Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand
Type
Article
Source Title
Horticulturae
ISSN
23117524
Year
2023
Volume
9
Issue
6
Open Access
All Open Access, Gold
Publisher
MDPI
DOI
10.3390/horticulturae9060726
Format
Abstract
Longan (Dimocarpus longan Lour.) is grown commercially in many countries, including China, Thailand, the Philippines, Malaysia, Vietnam, India, Australia, and Hawaii. Thailand is the second largest producer and largest exporter of longan in the world. Currently, there is limited information on the genetic background, population structure, and genetic relationships among longan cultivars in Thailand. In this study, a total of 50 longan accessions from a community-based germplasm collection in Thailand were analyzed using 10,619 SNPs from genotyping-by-sequencing (GBS). Based on the results of STRUCTURE analysis, 43 accessions were classified into 4 subpopulations, and the other 7 accessions were found to contain admixed genotypes. Based on UPGMA clustering analysis and PCoA analysis, the longan accessions could be divided into six major groups consistent with those identified by STRUCTURE. A relatively high degree of genetic variation was observed among the longan accessions, as quantified by the expected heterozygosity (He = 0.308). AMOVA results showed that 74% and 26% of the total variation occurred between and within populations, respectively. Obvious genetic differentiation between populations (FST = 0.25) was observed. The results of this study are useful for managing longan germplasm and may facilitate the genetic improvement of longan. ? 2023 by the authors.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
License
CC BY
Rights
Authors
Publication Source
WOS