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An Evaluation of Arabidopsis thaliana Hybrid Traits and Their Genetic Control
Heterosis is an important phenomenon in agriculture. However, heterosis often greatly varies among hybrids and among traits. To investigate heterosis across a large number of traits and numerous genotypes, we evaluated 12 life history traits on parents and hybrids derived from five Arabidopsis thali...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Genetics Society of America
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3276180/ https://www.ncbi.nlm.nih.gov/pubmed/22384368 http://dx.doi.org/10.1534/g3.111.001156 |
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author | Moore, Siobhan Lukens, Lewis |
author_facet | Moore, Siobhan Lukens, Lewis |
author_sort | Moore, Siobhan |
collection | PubMed |
description | Heterosis is an important phenomenon in agriculture. However, heterosis often greatly varies among hybrids and among traits. To investigate heterosis across a large number of traits and numerous genotypes, we evaluated 12 life history traits on parents and hybrids derived from five Arabidopsis thaliana ecotypes (Col, Ler-0, Cvi, Ws, and C24) by using a complete diallel analysis containing 20 hybrids. Parental contributions to heterosis were hybrid and trait specific with a few reciprocal differences. Most notably, C24 generated hybrids with flowering time, biomass, and reproductive traits that often exceeded high-parent values. However, reproductive traits of C24 and Col hybrids and flowering time traits of C24 and Ler hybrids had no heterosis. We investigated whether allelic variation at flowering time genes FRIGIDA (FRI) and FLOWERING LOCUS C (FLC) could explain the genotype- and trait-specific contribution of C24 to hybrid traits. We evaluated both Col and Ler lines introgressed with various FRI and FLC alleles and hybrids between these lines and C24. Hybrids with functional FLC differed from hybrids with nonfunctional FLC for 21 of the 24 hybrid-trait combinations. In most crosses, heterosis was fully or partially explained by FRI and FLC. Our results describe the genetic diversity for heterosis within a sample of A. thaliana ecotypes and show that FRI and FLC are major factors that contribute to heterosis in a genotype and trait specific fashion. |
format | Online Article Text |
id | pubmed-3276180 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Genetics Society of America |
record_format | MEDLINE/PubMed |
spelling | pubmed-32761802012-03-01 An Evaluation of Arabidopsis thaliana Hybrid Traits and Their Genetic Control Moore, Siobhan Lukens, Lewis G3 (Bethesda) Investigation Heterosis is an important phenomenon in agriculture. However, heterosis often greatly varies among hybrids and among traits. To investigate heterosis across a large number of traits and numerous genotypes, we evaluated 12 life history traits on parents and hybrids derived from five Arabidopsis thaliana ecotypes (Col, Ler-0, Cvi, Ws, and C24) by using a complete diallel analysis containing 20 hybrids. Parental contributions to heterosis were hybrid and trait specific with a few reciprocal differences. Most notably, C24 generated hybrids with flowering time, biomass, and reproductive traits that often exceeded high-parent values. However, reproductive traits of C24 and Col hybrids and flowering time traits of C24 and Ler hybrids had no heterosis. We investigated whether allelic variation at flowering time genes FRIGIDA (FRI) and FLOWERING LOCUS C (FLC) could explain the genotype- and trait-specific contribution of C24 to hybrid traits. We evaluated both Col and Ler lines introgressed with various FRI and FLC alleles and hybrids between these lines and C24. Hybrids with functional FLC differed from hybrids with nonfunctional FLC for 21 of the 24 hybrid-trait combinations. In most crosses, heterosis was fully or partially explained by FRI and FLC. Our results describe the genetic diversity for heterosis within a sample of A. thaliana ecotypes and show that FRI and FLC are major factors that contribute to heterosis in a genotype and trait specific fashion. Genetics Society of America 2011-12-01 /pmc/articles/PMC3276180/ /pubmed/22384368 http://dx.doi.org/10.1534/g3.111.001156 Text en Copyright © 2011 Moore, Lukens http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Unported License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Investigation Moore, Siobhan Lukens, Lewis An Evaluation of Arabidopsis thaliana Hybrid Traits and Their Genetic Control |
title | An Evaluation of Arabidopsis thaliana Hybrid Traits
and Their Genetic Control |
title_full | An Evaluation of Arabidopsis thaliana Hybrid Traits
and Their Genetic Control |
title_fullStr | An Evaluation of Arabidopsis thaliana Hybrid Traits
and Their Genetic Control |
title_full_unstemmed | An Evaluation of Arabidopsis thaliana Hybrid Traits
and Their Genetic Control |
title_short | An Evaluation of Arabidopsis thaliana Hybrid Traits
and Their Genetic Control |
title_sort | evaluation of arabidopsis thaliana hybrid traits
and their genetic control |
topic | Investigation |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3276180/ https://www.ncbi.nlm.nih.gov/pubmed/22384368 http://dx.doi.org/10.1534/g3.111.001156 |
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