Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm.
Evaluation of the genetic diversity and an understanding of the genetic structure and relationships of chickpea genotypes are valuable to design efficient germplasm conservation strategies and crop breeding programs. Information is limited, in these regards, for Ethiopian chickpea germplasms. Theref...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2021-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0260651 |
| _version_ | 1798034395057094656 |
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| author | Sintayehu Admas Kassahun Tesfaye Teklehaimanot Haileselassie Eleni Shiferaw K Colton Flynn |
| author_facet | Sintayehu Admas Kassahun Tesfaye Teklehaimanot Haileselassie Eleni Shiferaw K Colton Flynn |
| author_sort | Sintayehu Admas |
| collection | DOAJ |
| description | Evaluation of the genetic diversity and an understanding of the genetic structure and relationships of chickpea genotypes are valuable to design efficient germplasm conservation strategies and crop breeding programs. Information is limited, in these regards, for Ethiopian chickpea germplasms. Therefore, the present study was carried out to estimate the genetic diversity, population structure, and relationships of 152 chickpea genotypes using simple sequence repeats (SSR) markers. Twenty three SSR markers exhibited polymorphism producing a total of 133 alleles, with a mean of 5.8 alleles per locus. Analyses utilizing various genetic-based statistics included pairwise population Nei's genetic distance, heterozygosity, Shannon's information index, polymorphic information content, and percent polymorphism. These analyses exemplified the existence of high genetic variation within and among chickpea genotypes. The 152 genotypes were divided into two major clusters based on Nei's genetic distances. The exotic genotypes were grouped in one cluster exclusively showing that these genotypes are distinct to Ethiopian genotypes, while the patterns of clustering of Ethiopian chickpea genotypes based on their geographic region were not consistent because of the seed exchange across regions. Model-based population structure clustering identified two discrete populations. These finding provides useful insight for chickpea collections and ex-situ conservation and national breeding programs for widening the genetic base of chickpea. |
| first_indexed | 2024-04-11T20:43:46Z |
| format | Article |
| id | doaj.art-b2a0bf033a9042b8ad1864a8c9014594 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-11T20:43:46Z |
| publishDate | 2021-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-b2a0bf033a9042b8ad1864a8c90145942022-12-22T04:04:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-011611e026065110.1371/journal.pone.0260651Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm.Sintayehu AdmasKassahun TesfayeTeklehaimanot HaileselassieEleni ShiferawK Colton FlynnEvaluation of the genetic diversity and an understanding of the genetic structure and relationships of chickpea genotypes are valuable to design efficient germplasm conservation strategies and crop breeding programs. Information is limited, in these regards, for Ethiopian chickpea germplasms. Therefore, the present study was carried out to estimate the genetic diversity, population structure, and relationships of 152 chickpea genotypes using simple sequence repeats (SSR) markers. Twenty three SSR markers exhibited polymorphism producing a total of 133 alleles, with a mean of 5.8 alleles per locus. Analyses utilizing various genetic-based statistics included pairwise population Nei's genetic distance, heterozygosity, Shannon's information index, polymorphic information content, and percent polymorphism. These analyses exemplified the existence of high genetic variation within and among chickpea genotypes. The 152 genotypes were divided into two major clusters based on Nei's genetic distances. The exotic genotypes were grouped in one cluster exclusively showing that these genotypes are distinct to Ethiopian genotypes, while the patterns of clustering of Ethiopian chickpea genotypes based on their geographic region were not consistent because of the seed exchange across regions. Model-based population structure clustering identified two discrete populations. These finding provides useful insight for chickpea collections and ex-situ conservation and national breeding programs for widening the genetic base of chickpea.https://doi.org/10.1371/journal.pone.0260651 |
| spellingShingle | Sintayehu Admas Kassahun Tesfaye Teklehaimanot Haileselassie Eleni Shiferaw K Colton Flynn Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. PLoS ONE |
| title | Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. |
| title_full | Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. |
| title_fullStr | Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. |
| title_full_unstemmed | Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. |
| title_short | Genetic variability and population structure of Ethiopian chickpea (Cicer arietinum L.) germplasm. |
| title_sort | genetic variability and population structure of ethiopian chickpea cicer arietinum l germplasm |
| url | https://doi.org/10.1371/journal.pone.0260651 |
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