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Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity
Agriculture has new challenges against the climate change: the preservation of genetic resources and the rapid creation of new varieties better adapted to abiotic stress, specially salinity. In this context, the agronomic performance of 25 durum wheat (Triticum turgidum subsp. durum Desf.) genotypes...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Academy of Scientific Research and Technology, Egypt
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296626/ https://www.ncbi.nlm.nih.gov/pubmed/30647718 http://dx.doi.org/10.1016/j.jgeb.2017.11.004 |
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author | Ayed-Slama, Olfa Bouhaouel, Imen Chamekh, Zoubeir Trifa, Youssef Sahli, Ali Ben Aissa, Nadhira Slim-Amara, Hajer |
author_facet | Ayed-Slama, Olfa Bouhaouel, Imen Chamekh, Zoubeir Trifa, Youssef Sahli, Ali Ben Aissa, Nadhira Slim-Amara, Hajer |
author_sort | Ayed-Slama, Olfa |
collection | PubMed |
description | Agriculture has new challenges against the climate change: the preservation of genetic resources and the rapid creation of new varieties better adapted to abiotic stress, specially salinity. In this context, the agronomic performance of 25 durum wheat (Triticum turgidum subsp. durum Desf.) genotypes (nineteen landraces and six improved varieties), cultivated in two semi-arid regions in the center area of Tunisia, were assessed. These sites (Echbika, 2.2 g l(−1); Barrouta, 4.2 g l(−1)) differ by their degree of salinity of the water irrigation. The results showed that most of the agronomic traits (e.g. spike per meter square, thousand kernels weight and grain yield) were reduced by salinity. Durum wheat landraces, Mahmoudi and Hmira, and improved varieties, Maali and Om Rabia showed the widest adaptability to different quality of irrigation water. Genotypes including Jneh Kotifa and Arbi were estimated as stable genotypes under adverse conditions. Thereafter, salt-tolerant (Hmira and Jneh Khotifa) and the most cultivated high-yielding (Karim, Razzak and Khiar) genotypes were tested for their gynogenetic ability to obtain haploids and doubled haploid lines. Genotypes with good induction capacity had not necessarily a good capacity of regeneration of haploid plantlets. In our conditions, Hmira and Khiar exhibited the best gynogenetic ability (3.1% and 2.9% of haploid plantlets, respectively). |
format | Online Article Text |
id | pubmed-6296626 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Academy of Scientific Research and Technology, Egypt |
record_format | MEDLINE/PubMed |
spelling | pubmed-62966262019-01-15 Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity Ayed-Slama, Olfa Bouhaouel, Imen Chamekh, Zoubeir Trifa, Youssef Sahli, Ali Ben Aissa, Nadhira Slim-Amara, Hajer J Genet Eng Biotechnol Plant Biotechnology Agriculture has new challenges against the climate change: the preservation of genetic resources and the rapid creation of new varieties better adapted to abiotic stress, specially salinity. In this context, the agronomic performance of 25 durum wheat (Triticum turgidum subsp. durum Desf.) genotypes (nineteen landraces and six improved varieties), cultivated in two semi-arid regions in the center area of Tunisia, were assessed. These sites (Echbika, 2.2 g l(−1); Barrouta, 4.2 g l(−1)) differ by their degree of salinity of the water irrigation. The results showed that most of the agronomic traits (e.g. spike per meter square, thousand kernels weight and grain yield) were reduced by salinity. Durum wheat landraces, Mahmoudi and Hmira, and improved varieties, Maali and Om Rabia showed the widest adaptability to different quality of irrigation water. Genotypes including Jneh Kotifa and Arbi were estimated as stable genotypes under adverse conditions. Thereafter, salt-tolerant (Hmira and Jneh Khotifa) and the most cultivated high-yielding (Karim, Razzak and Khiar) genotypes were tested for their gynogenetic ability to obtain haploids and doubled haploid lines. Genotypes with good induction capacity had not necessarily a good capacity of regeneration of haploid plantlets. In our conditions, Hmira and Khiar exhibited the best gynogenetic ability (3.1% and 2.9% of haploid plantlets, respectively). Academy of Scientific Research and Technology, Egypt 2018-06 2017-12-01 /pmc/articles/PMC6296626/ /pubmed/30647718 http://dx.doi.org/10.1016/j.jgeb.2017.11.004 Text en © 2017 Production and hosting by Elsevier B.V. on behalf of Academy of Scientific Research & Technology. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Plant Biotechnology Ayed-Slama, Olfa Bouhaouel, Imen Chamekh, Zoubeir Trifa, Youssef Sahli, Ali Ben Aissa, Nadhira Slim-Amara, Hajer Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title | Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title_full | Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title_fullStr | Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title_full_unstemmed | Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title_short | Genetic variation of salt-stressed durum wheat (Triticum turgidum subsp. durum Desf.) genotypes under field conditions and gynogenetic capacity |
title_sort | genetic variation of salt-stressed durum wheat (triticum turgidum subsp. durum desf.) genotypes under field conditions and gynogenetic capacity |
topic | Plant Biotechnology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296626/ https://www.ncbi.nlm.nih.gov/pubmed/30647718 http://dx.doi.org/10.1016/j.jgeb.2017.11.004 |
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