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Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies
The exploitation of heterosis through hybrid breeding is one of the major breeding objectives for productivity increase in crop plants. This research analyzes the genetic basis of heterosis in Brassica juncea by using a doubled haploid (DH) mapping population derived from F(1) between two heterotic...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8481694/ https://www.ncbi.nlm.nih.gov/pubmed/34603351 http://dx.doi.org/10.3389/fpls.2021.721631 |
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author | Aakanksha, Yadava, Satish Kumar Yadav, Bal Govind Gupta, Vibha Mukhopadhyay, Arundhati Pental, Deepak Pradhan, Akshay K. |
author_facet | Aakanksha, Yadava, Satish Kumar Yadav, Bal Govind Gupta, Vibha Mukhopadhyay, Arundhati Pental, Deepak Pradhan, Akshay K. |
author_sort | Aakanksha, |
collection | PubMed |
description | The exploitation of heterosis through hybrid breeding is one of the major breeding objectives for productivity increase in crop plants. This research analyzes the genetic basis of heterosis in Brassica juncea by using a doubled haploid (DH) mapping population derived from F(1) between two heterotic inbred parents, one belonging to the Indian and the other belonging to the east European gene pool, and their two corresponding sets of backcross hybrids. An Illumina Infinium Brassica 90K SNP array-based genetic map was used to identify yield influencing quantitative trait loci (QTL) related to plant architecture, flowering, and silique- and seed-related traits using five different data sets from multiple trials, allowing the estimation of additive and dominance effects, as well as digenic epistatic interactions. In total, 695 additive QTL were detected for the 14 traits in the three trials using five data sets, with overdominance observed to be the predominant type of effect in determining the expression of heterotic QTL. The results indicated that the design in the present study was efficient for identifying common QTL across multiple trials and populations, which constitute a valuable resource for marker-assisted selection and further research. In addition, a total of 637 epistatic loci were identified, and it was concluded that epistasis among loci without detectable main effects plays an important role in controlling heterosis in yield of B. juncea. |
format | Online Article Text |
id | pubmed-8481694 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-84816942021-10-01 Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies Aakanksha, Yadava, Satish Kumar Yadav, Bal Govind Gupta, Vibha Mukhopadhyay, Arundhati Pental, Deepak Pradhan, Akshay K. Front Plant Sci Plant Science The exploitation of heterosis through hybrid breeding is one of the major breeding objectives for productivity increase in crop plants. This research analyzes the genetic basis of heterosis in Brassica juncea by using a doubled haploid (DH) mapping population derived from F(1) between two heterotic inbred parents, one belonging to the Indian and the other belonging to the east European gene pool, and their two corresponding sets of backcross hybrids. An Illumina Infinium Brassica 90K SNP array-based genetic map was used to identify yield influencing quantitative trait loci (QTL) related to plant architecture, flowering, and silique- and seed-related traits using five different data sets from multiple trials, allowing the estimation of additive and dominance effects, as well as digenic epistatic interactions. In total, 695 additive QTL were detected for the 14 traits in the three trials using five data sets, with overdominance observed to be the predominant type of effect in determining the expression of heterotic QTL. The results indicated that the design in the present study was efficient for identifying common QTL across multiple trials and populations, which constitute a valuable resource for marker-assisted selection and further research. In addition, a total of 637 epistatic loci were identified, and it was concluded that epistasis among loci without detectable main effects plays an important role in controlling heterosis in yield of B. juncea. Frontiers Media S.A. 2021-09-16 /pmc/articles/PMC8481694/ /pubmed/34603351 http://dx.doi.org/10.3389/fpls.2021.721631 Text en Copyright © 2021 Aakanksha, Yadava, Yadav, Gupta, Mukhopadhyay, Pental and Pradhan. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Aakanksha, Yadava, Satish Kumar Yadav, Bal Govind Gupta, Vibha Mukhopadhyay, Arundhati Pental, Deepak Pradhan, Akshay K. Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title | Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title_full | Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title_fullStr | Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title_full_unstemmed | Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title_short | Genetic Analysis of Heterosis for Yield Influencing Traits in Brassica juncea Using a Doubled Haploid Population and Its Backcross Progenies |
title_sort | genetic analysis of heterosis for yield influencing traits in brassica juncea using a doubled haploid population and its backcross progenies |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8481694/ https://www.ncbi.nlm.nih.gov/pubmed/34603351 http://dx.doi.org/10.3389/fpls.2021.721631 |
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