Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China

Durian (<i>Durio zibethinus</i> L.) is a crop of economic and health importance globally. Efforts are being made to revamp China’s only successful commercial-scale durian plantations in Hainan; however, their genetic base is unknown. Therefore, the present study was undertaken to assess...

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Main Authors: Xinge Lin, Xiaodi Liu, Meigu Chen, Hongmao Gao, Zhenzhong Zhu, Zheli Ding, Zhaoxi Zhou
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/9/769
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author Xinge Lin
Xiaodi Liu
Meigu Chen
Hongmao Gao
Zhenzhong Zhu
Zheli Ding
Zhaoxi Zhou
author_facet Xinge Lin
Xiaodi Liu
Meigu Chen
Hongmao Gao
Zhenzhong Zhu
Zheli Ding
Zhaoxi Zhou
author_sort Xinge Lin
collection DOAJ
description Durian (<i>Durio zibethinus</i> L.) is a crop of economic and health importance globally. Efforts are being made to revamp China’s only successful commercial-scale durian plantations in Hainan; however, their genetic base is unknown. Therefore, the present study was undertaken to assess the genetic base and population structure of 32 genotypes in durian plantation sites in Hainan, China, and develop simple sequence repeat (SSR) markers by whole genome sequencing through restriction site-associated DNA sequencing technology to facilitate germplasm conservation and breeding. The results from identity by state (IBS), phylogenetic tree, population structure, and principal component analysis grouped the 32 genotypes into two clusters/sub-populations. Based on IBS, genotypes in Cluster I are largely duplicated genotypes; however, results from the model-based population structure demonstrated that most of the genotypes in Sub-population II shared a common genetic background with those in Sub-population I/Cluster I. The results revealed that the core durian collection in the plantation sites in Hainan include D24, D101, MSW, JH, D163, HFH, and NLX-5. In addition, we developed a total of 79,178 SSR markers with varied lengths and amplicon sizes. The genetic diversity and population structure reported in this study will be useful for durian conservation and utilization. In addition, the discovered and developed SSR markers will lay the foundation for molecular breeding via marker-assisted selection, quantitative trait loci mapping, and candidate gene discovery and validation.
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spelling doaj.art-dafa63fddb744fe0bdaa756184dbd4df2023-11-23T15:53:18ZengMDPI AGDiversity1424-28182022-09-0114976910.3390/d14090769Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in ChinaXinge Lin0Xiaodi Liu1Meigu Chen2Hongmao Gao3Zhenzhong Zhu4Zheli Ding5Zhaoxi Zhou6Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaHaikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaDurian (<i>Durio zibethinus</i> L.) is a crop of economic and health importance globally. Efforts are being made to revamp China’s only successful commercial-scale durian plantations in Hainan; however, their genetic base is unknown. Therefore, the present study was undertaken to assess the genetic base and population structure of 32 genotypes in durian plantation sites in Hainan, China, and develop simple sequence repeat (SSR) markers by whole genome sequencing through restriction site-associated DNA sequencing technology to facilitate germplasm conservation and breeding. The results from identity by state (IBS), phylogenetic tree, population structure, and principal component analysis grouped the 32 genotypes into two clusters/sub-populations. Based on IBS, genotypes in Cluster I are largely duplicated genotypes; however, results from the model-based population structure demonstrated that most of the genotypes in Sub-population II shared a common genetic background with those in Sub-population I/Cluster I. The results revealed that the core durian collection in the plantation sites in Hainan include D24, D101, MSW, JH, D163, HFH, and NLX-5. In addition, we developed a total of 79,178 SSR markers with varied lengths and amplicon sizes. The genetic diversity and population structure reported in this study will be useful for durian conservation and utilization. In addition, the discovered and developed SSR markers will lay the foundation for molecular breeding via marker-assisted selection, quantitative trait loci mapping, and candidate gene discovery and validation.https://www.mdpi.com/1424-2818/14/9/769crop improvementgenomicsmarker-assisted selectionsingle nucleotide polymorphismsimple sequence repeats
spellingShingle Xinge Lin
Xiaodi Liu
Meigu Chen
Hongmao Gao
Zhenzhong Zhu
Zheli Ding
Zhaoxi Zhou
Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
Diversity
crop improvement
genomics
marker-assisted selection
single nucleotide polymorphism
simple sequence repeats
title Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
title_full Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
title_fullStr Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
title_full_unstemmed Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
title_short Assessment of Genetic Diversity and Discovery of Molecular Markers in Durian (<i>Durio zibethinus</i> L.) in China
title_sort assessment of genetic diversity and discovery of molecular markers in durian i durio zibethinus i l in china
topic crop improvement
genomics
marker-assisted selection
single nucleotide polymorphism
simple sequence repeats
url https://www.mdpi.com/1424-2818/14/9/769
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