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Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions
Heat stress is a critical challenge to tall fescue (Festuca arundinacea Schreb.) in many areas of the globe and variations in genetic structure and functional traits is for the efficient breeding programs on developing heat tolerant cultivars. Tolerant-related morpho-physiological traits and simple...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678371/ https://www.ncbi.nlm.nih.gov/pubmed/26666506 http://dx.doi.org/10.1038/srep18213 |
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author | Sun, Xiaoyan Xie, Yan Bi, Yufang Liu, Jianping Amombo, Erick Hu, Tao Fu, Jinmin |
author_facet | Sun, Xiaoyan Xie, Yan Bi, Yufang Liu, Jianping Amombo, Erick Hu, Tao Fu, Jinmin |
author_sort | Sun, Xiaoyan |
collection | PubMed |
description | Heat stress is a critical challenge to tall fescue (Festuca arundinacea Schreb.) in many areas of the globe and variations in genetic structure and functional traits is for the efficient breeding programs on developing heat tolerant cultivars. Tolerant-related morpho-physiological traits and simple sequence repeat (SSR) markers were employed to survey genetic diversity in greenhouse and growth chamber trials. 100 tall fescue accessions, including 8 commercial cultivars and 92 natural genotypes, showed a high variation in phenotypic performance under heat stress. Based on standardized heat tolerant-related morpho-physiological data, all tall fescue accessions were clustered into five groups. The accessions with similar heat tolerance were likely to be clustered in the same group. The highest genetic diversity was obtained for accessions from Africa judged by Nei’s gene diversity (0.2640) and PIC (0.2112). All grass accessions could be divided into three major groups based on SSR markers, which was partially congruous to the geographical regions and history of introduction. A low correlation was found between morpho-physiological traits and SSR markers by Mantel test. The patterns in morpho-physiological trait variations and genetic diversity associated with heat tolerance were useful to design breeding programs for developing heat stress resistance in tall fescue. |
format | Online Article Text |
id | pubmed-4678371 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46783712015-12-18 Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions Sun, Xiaoyan Xie, Yan Bi, Yufang Liu, Jianping Amombo, Erick Hu, Tao Fu, Jinmin Sci Rep Article Heat stress is a critical challenge to tall fescue (Festuca arundinacea Schreb.) in many areas of the globe and variations in genetic structure and functional traits is for the efficient breeding programs on developing heat tolerant cultivars. Tolerant-related morpho-physiological traits and simple sequence repeat (SSR) markers were employed to survey genetic diversity in greenhouse and growth chamber trials. 100 tall fescue accessions, including 8 commercial cultivars and 92 natural genotypes, showed a high variation in phenotypic performance under heat stress. Based on standardized heat tolerant-related morpho-physiological data, all tall fescue accessions were clustered into five groups. The accessions with similar heat tolerance were likely to be clustered in the same group. The highest genetic diversity was obtained for accessions from Africa judged by Nei’s gene diversity (0.2640) and PIC (0.2112). All grass accessions could be divided into three major groups based on SSR markers, which was partially congruous to the geographical regions and history of introduction. A low correlation was found between morpho-physiological traits and SSR markers by Mantel test. The patterns in morpho-physiological trait variations and genetic diversity associated with heat tolerance were useful to design breeding programs for developing heat stress resistance in tall fescue. Nature Publishing Group 2015-12-15 /pmc/articles/PMC4678371/ /pubmed/26666506 http://dx.doi.org/10.1038/srep18213 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Sun, Xiaoyan Xie, Yan Bi, Yufang Liu, Jianping Amombo, Erick Hu, Tao Fu, Jinmin Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title | Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title_full | Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title_fullStr | Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title_full_unstemmed | Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title_short | Comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
title_sort | comparative study of diversity based on heat tolerant-related morpho-physiological traits and molecular markers in tall fescue accessions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678371/ https://www.ncbi.nlm.nih.gov/pubmed/26666506 http://dx.doi.org/10.1038/srep18213 |
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