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Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition
The knowledge pertaining to gene action and interactions involved in the inheritance of a character in different generations is crucial for determining the breeding strategies in crop improvement program. In the present study, the gene action of stomatal conductance was determined in four wheat popu...
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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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8635030/ https://www.ncbi.nlm.nih.gov/pubmed/34868094 http://dx.doi.org/10.3389/fpls.2021.658443 |
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author | Ramya, Kalasapura Thimmappa Bellundagi, Amasiddha Harikrishna, Rai, Neha Jain, Neelu Singh, Pradeep Kumar Arora, Ajay Singh, Gyanendra Pratap Prabhu, Kumble Vinod |
author_facet | Ramya, Kalasapura Thimmappa Bellundagi, Amasiddha Harikrishna, Rai, Neha Jain, Neelu Singh, Pradeep Kumar Arora, Ajay Singh, Gyanendra Pratap Prabhu, Kumble Vinod |
author_sort | Ramya, Kalasapura Thimmappa |
collection | PubMed |
description | The knowledge pertaining to gene action and interactions involved in the inheritance of a character in different generations is crucial for determining the breeding strategies in crop improvement program. In the present study, the gene action of stomatal conductance was determined in four wheat populations under high elevated temperatures coupled with late sowing at experimental farm, ICAR-Indian Agricultural Research Institute, New Delhi, India. Steady-state SC-1 leaf porometer was used to record stomatal conductance on adaxial and abaxial leaf surface at late boot (Z 49–50), early milk (Z 73), and late milk (Z 77) growth stages. Evidence for nuclear genetic control of stomatal conductance was strong, with large and repeatable genetic difference observed for parents and progeny across all the four crosses. Mean stomatal conductance for genotypes, GW 322 and GW 366, was consistently low at late boot, early milk, and late milk under timely sown, late sown, and very late sown condition, whereas the converse was true for the high-conducting parents, KAUZ/AA//KAUZ and RAC 875. Additive and additive x additive epistatic effects were large and reasonably consistent at three stages and in all crosses. Detection of epistasis and evidence of transgressive segregation suggested that variation for stomatal conductance was under oligo or polygenic control. Thus, it is conceivable that independent alleles at two or more loci could be pyramided into a single family for increased or decreased stomatal conductance. Additive-based gene action also facilitates with simple selection at early generation to improve stomatal conductance in expected direction. This is the first report on estimates of gene action for stomatal conductance of flag leaf under heat stress condition during reproductive and grain filling stage. |
format | Online Article Text |
id | pubmed-8635030 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-86350302021-12-02 Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition Ramya, Kalasapura Thimmappa Bellundagi, Amasiddha Harikrishna, Rai, Neha Jain, Neelu Singh, Pradeep Kumar Arora, Ajay Singh, Gyanendra Pratap Prabhu, Kumble Vinod Front Plant Sci Plant Science The knowledge pertaining to gene action and interactions involved in the inheritance of a character in different generations is crucial for determining the breeding strategies in crop improvement program. In the present study, the gene action of stomatal conductance was determined in four wheat populations under high elevated temperatures coupled with late sowing at experimental farm, ICAR-Indian Agricultural Research Institute, New Delhi, India. Steady-state SC-1 leaf porometer was used to record stomatal conductance on adaxial and abaxial leaf surface at late boot (Z 49–50), early milk (Z 73), and late milk (Z 77) growth stages. Evidence for nuclear genetic control of stomatal conductance was strong, with large and repeatable genetic difference observed for parents and progeny across all the four crosses. Mean stomatal conductance for genotypes, GW 322 and GW 366, was consistently low at late boot, early milk, and late milk under timely sown, late sown, and very late sown condition, whereas the converse was true for the high-conducting parents, KAUZ/AA//KAUZ and RAC 875. Additive and additive x additive epistatic effects were large and reasonably consistent at three stages and in all crosses. Detection of epistasis and evidence of transgressive segregation suggested that variation for stomatal conductance was under oligo or polygenic control. Thus, it is conceivable that independent alleles at two or more loci could be pyramided into a single family for increased or decreased stomatal conductance. Additive-based gene action also facilitates with simple selection at early generation to improve stomatal conductance in expected direction. This is the first report on estimates of gene action for stomatal conductance of flag leaf under heat stress condition during reproductive and grain filling stage. Frontiers Media S.A. 2021-11-16 /pmc/articles/PMC8635030/ /pubmed/34868094 http://dx.doi.org/10.3389/fpls.2021.658443 Text en Copyright © 2021 Ramya, Bellundagi, Harikrishna, Rai, Jain, Singh, Arora, Singh and Prabhu. 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 Ramya, Kalasapura Thimmappa Bellundagi, Amasiddha Harikrishna, Rai, Neha Jain, Neelu Singh, Pradeep Kumar Arora, Ajay Singh, Gyanendra Pratap Prabhu, Kumble Vinod Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title | Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title_full | Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title_fullStr | Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title_full_unstemmed | Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title_short | Gene Action Governing the Inheritance of Stomatal Conductance in Four Wheat Crosses Under High Temperature Stress Condition |
title_sort | gene action governing the inheritance of stomatal conductance in four wheat crosses under high temperature stress condition |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8635030/ https://www.ncbi.nlm.nih.gov/pubmed/34868094 http://dx.doi.org/10.3389/fpls.2021.658443 |
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