Heterosis for the root distribution trait in common bean
Heterosis has been one of the most studied phenomena since genetic studies were conceived. Knowledge of this phenomenon for the root distribution trait in beans (Phaseolus vulgaris L.) can favour the development of genotypes that are more tolerant to abiotic stresses. This study aimed to verify the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Eduem (Editora da Universidade Estadual de Maringá)
2020-08-01
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| Series: | Acta Scientiarum: Agronomy |
| Subjects: | |
| Online Access: | https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/46712 |
| _version_ | 1819094770097586176 |
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| author | Sibila Grigolo Rita Carolina de Melo Ana Carolina da Costa Lara Fioreze Altamir Frederico Guidolin Jefferson Luís Meirelles Coimbra |
| author_facet | Sibila Grigolo Rita Carolina de Melo Ana Carolina da Costa Lara Fioreze Altamir Frederico Guidolin Jefferson Luís Meirelles Coimbra |
| author_sort | Sibila Grigolo |
| collection | DOAJ |
| description | Heterosis has been one of the most studied phenomena since genetic studies were conceived. Knowledge of this phenomenon for the root distribution trait in beans (Phaseolus vulgaris L.) can favour the development of genotypes that are more tolerant to abiotic stresses. This study aimed to verify the occurrence of heterosis for the root distribution trait in hybrid F1 populations of common bean derived from crosses within and between gene groups. Thirty-six populations (six parents and 30 hybrids) were evaluated under field conditions in the agricultural years 2016/17 and 2017/18. The root distribution was assessed with the adapted Bohm method. The genotypes responded similarly to environmental changes (absence of an interaction). However, the root distribution differed significantly between the agricultural years. Comparisons between the mean of hybrids from crosses within each gene pool and the mean of parents did not reveal heterosis. The comparisons between gene groups showed significant differences only between BRS Embaixador x IPR Uirapuru, CBS 14 x IPR Uirapuru, and BAF 53 x IPR Uirapuru and the mean of parents. The absence of heterosis in the root trait can be explained by the degree of kinship between the gene groups, as well as some epistatic interactions. |
| first_indexed | 2024-12-21T23:32:41Z |
| format | Article |
| id | doaj.art-17de0e4cf8444396ab593ad34a69031f |
| institution | Directory Open Access Journal |
| issn | 1679-9275 1807-8621 |
| language | English |
| last_indexed | 2024-12-21T23:32:41Z |
| publishDate | 2020-08-01 |
| publisher | Eduem (Editora da Universidade Estadual de Maringá) |
| record_format | Article |
| series | Acta Scientiarum: Agronomy |
| spelling | doaj.art-17de0e4cf8444396ab593ad34a69031f2022-12-21T18:46:27ZengEduem (Editora da Universidade Estadual de Maringá)Acta Scientiarum: Agronomy1679-92751807-86212020-08-0143e46712e4671210.4025/actasciagron.v43i1.4671246712Heterosis for the root distribution trait in common beanSibila Grigolo0Rita Carolina de Melo1Ana Carolina da Costa Lara Fioreze2Altamir Frederico Guidolin3Jefferson Luís Meirelles Coimbra4Universidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade Federal de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaHeterosis has been one of the most studied phenomena since genetic studies were conceived. Knowledge of this phenomenon for the root distribution trait in beans (Phaseolus vulgaris L.) can favour the development of genotypes that are more tolerant to abiotic stresses. This study aimed to verify the occurrence of heterosis for the root distribution trait in hybrid F1 populations of common bean derived from crosses within and between gene groups. Thirty-six populations (six parents and 30 hybrids) were evaluated under field conditions in the agricultural years 2016/17 and 2017/18. The root distribution was assessed with the adapted Bohm method. The genotypes responded similarly to environmental changes (absence of an interaction). However, the root distribution differed significantly between the agricultural years. Comparisons between the mean of hybrids from crosses within each gene pool and the mean of parents did not reveal heterosis. The comparisons between gene groups showed significant differences only between BRS Embaixador x IPR Uirapuru, CBS 14 x IPR Uirapuru, and BAF 53 x IPR Uirapuru and the mean of parents. The absence of heterosis in the root trait can be explained by the degree of kinship between the gene groups, as well as some epistatic interactions.https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/46712phaseolus vulgaris l.; hybrid vigor; gene pools; genetic hypotheses. |
| spellingShingle | Sibila Grigolo Rita Carolina de Melo Ana Carolina da Costa Lara Fioreze Altamir Frederico Guidolin Jefferson Luís Meirelles Coimbra Heterosis for the root distribution trait in common bean Acta Scientiarum: Agronomy phaseolus vulgaris l.; hybrid vigor; gene pools; genetic hypotheses. |
| title | Heterosis for the root distribution trait in common bean |
| title_full | Heterosis for the root distribution trait in common bean |
| title_fullStr | Heterosis for the root distribution trait in common bean |
| title_full_unstemmed | Heterosis for the root distribution trait in common bean |
| title_short | Heterosis for the root distribution trait in common bean |
| title_sort | heterosis for the root distribution trait in common bean |
| topic | phaseolus vulgaris l.; hybrid vigor; gene pools; genetic hypotheses. |
| url | https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/46712 |
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