Journal article
Evaluation of the genetic diversity and population structure of sesame (Sesamum indicum L.) using microsatellite markers
Genes & genomics, v 33(2), pp 187-195
01 Apr 2011
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Abstract
Sixteen polymorphic microsatellite (SSR) markers, developed from an SSR-enriched genomic DNA library of sesame (Sesamum indicum L.), were used to assess genetic diversity, phylogenetic relationships, and population structure among 150 sesame accessions collected from 22 countries. A total of 121 alleles were detected among the sesame accessions. The number of detected alleles varied from 2 to 18, with an average of 7.6 alleles per locus. Polymorphism information content values ranged from 0.03 to 0.79, with an average of 0.42. These values indicated an excess of heterozygous individuals at 16 loci and an excess of homozygous individuals at three loci. Of these, 32 genotype-specific alleles were identified at 11 of 16 polymorphic SSR markers. Cluster analyses were performed by accession and population, revealing a complex accession distribution pattern with mean genetic similarity coefficient of 0.45 by accession and 0.52 by population. The wide variation in genetic similarity among the accessions revealed by SSRs reflected a high level of polymorphism at the DNA level. Model-based structure analysis revealed the presence of three groups that were basically consistent with the clustering results based on genetic distance. These findings may be used to augment the sesame germplasm and to increase the effectiveness of sesame breeding.
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Details
- Title
- Evaluation of the genetic diversity and population structure of sesame (Sesamum indicum L.) using microsatellite markers
- Creators
- Young-Il Cho - Plant (United States)Jong-Hyun Park - Rural Dev Adm, Bioresources Management Div, Res Policy Bur, Suwon 441707, South KoreaChul-Won Lee - Chungbuk Natl Univ, Dept Crop Sci, Chonju 361763, South KoreaWon-Hee Ra - Plant (United States)Jong-Wook Chung - Plant (United States)Jung-Ro Lee - Rural Dev Adm, Natl Inst Agr Biotechnol, Natl Agrobiodivers Ctr, Suwon 441707, South KoreaKyung-Ho Ma - Rural Dev Adm, Natl Inst Agr Biotechnol, Natl Agrobiodivers Ctr, Suwon 441707, South KoreaSeok-Young Lee - Rural Dev Adm, Natl Inst Agr Biotechnol, Natl Agrobiodivers Ctr, Suwon 441707, South KoreaKang-Seob Lee - Rural Dev Adm, Natl Inst Agr Biotechnol, Natl Agrobiodivers Ctr, Suwon 441707, South KoreaMyung-Chul Lee - Rural Dev Adm, Natl Inst Agr Biotechnol, Natl Agrobiodivers Ctr, Suwon 441707, South KoreaYong-Jin Park - Plant (United States)
- Publication Details
- Genes & genomics, v 33(2), pp 187-195
- Publisher
- Springer Nature
- Number of pages
- 9
- Grant note
- 20080401034058 / Rural Development Administration, the Republic of Korea; Rural Development Administration (RDA), Republic of Korea
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000291538100014
- Scopus ID
- 2-s2.0-80052592019
- Other Identifier
- 991020547611204721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Biochemistry & Molecular Biology
- Biotechnology & Applied Microbiology
- Genetics & Heredity