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Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants

Chromosomal inversions have the potential to play an important role in evolution by reducing recombination between favorable combinations of alleles. Until recently, however, most evidence for their likely importance derived from dipteran flies, whose giant larval salivary chromosomes aided early cy...

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Autores principales: Huang, Kaichi, Rieseberg, Loren H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093584/
https://www.ncbi.nlm.nih.gov/pubmed/32256515
http://dx.doi.org/10.3389/fpls.2020.00296
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author Huang, Kaichi
Rieseberg, Loren H.
author_facet Huang, Kaichi
Rieseberg, Loren H.
author_sort Huang, Kaichi
collection PubMed
description Chromosomal inversions have the potential to play an important role in evolution by reducing recombination between favorable combinations of alleles. Until recently, however, most evidence for their likely importance derived from dipteran flies, whose giant larval salivary chromosomes aided early cytogenetic studies. The widespread application of new genomic technologies has revealed that inversions are ubiquitous across much of the plant and animal kingdoms. Here we review the rapidly accumulating literature on inversions in the plant kingdom and discuss what we have learned about their establishment and likely evolutionary role. We show that inversions are prevalent across a wide range of plant groups. We find that inversions are often associated with locally favored traits, as well as with traits that contribute to assortative mating, suggesting that they may be key to adaptation and speciation in the face of gene flow. We also discuss the role of inversions in sex chromosome formation, and explore possible parallels with inversion establishment on autosomes. The identification of inversion origins, as well as the causal variants within them, will advance our understanding of chromosomal evolution in plants.
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spelling pubmed-70935842020-04-01 Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants Huang, Kaichi Rieseberg, Loren H. Front Plant Sci Plant Science Chromosomal inversions have the potential to play an important role in evolution by reducing recombination between favorable combinations of alleles. Until recently, however, most evidence for their likely importance derived from dipteran flies, whose giant larval salivary chromosomes aided early cytogenetic studies. The widespread application of new genomic technologies has revealed that inversions are ubiquitous across much of the plant and animal kingdoms. Here we review the rapidly accumulating literature on inversions in the plant kingdom and discuss what we have learned about their establishment and likely evolutionary role. We show that inversions are prevalent across a wide range of plant groups. We find that inversions are often associated with locally favored traits, as well as with traits that contribute to assortative mating, suggesting that they may be key to adaptation and speciation in the face of gene flow. We also discuss the role of inversions in sex chromosome formation, and explore possible parallels with inversion establishment on autosomes. The identification of inversion origins, as well as the causal variants within them, will advance our understanding of chromosomal evolution in plants. Frontiers Media S.A. 2020-03-18 /pmc/articles/PMC7093584/ /pubmed/32256515 http://dx.doi.org/10.3389/fpls.2020.00296 Text en Copyright © 2020 Huang and Rieseberg. http://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
Huang, Kaichi
Rieseberg, Loren H.
Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title_full Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title_fullStr Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title_full_unstemmed Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title_short Frequency, Origins, and Evolutionary Role of Chromosomal Inversions in Plants
title_sort frequency, origins, and evolutionary role of chromosomal inversions in plants
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093584/
https://www.ncbi.nlm.nih.gov/pubmed/32256515
http://dx.doi.org/10.3389/fpls.2020.00296
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