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Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus

Willows (Salix) and poplars (Populus) are dioecious plants in Salicaceae family. Sex chromosome in poplar genome was consistently reported to be associated with chromosome XIX. In contrast to poplar, this study revealed that chromosome XV was sex chromosome in willow. Previous studies revealed that...

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Autores principales: Hou, Jing, Ye, Ning, Zhang, Defang, Chen, Yingnan, Fang, Lecheng, Dai, Xiaogang, Yin, Tongming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4357872/
https://www.ncbi.nlm.nih.gov/pubmed/25766834
http://dx.doi.org/10.1038/srep09076
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author Hou, Jing
Ye, Ning
Zhang, Defang
Chen, Yingnan
Fang, Lecheng
Dai, Xiaogang
Yin, Tongming
author_facet Hou, Jing
Ye, Ning
Zhang, Defang
Chen, Yingnan
Fang, Lecheng
Dai, Xiaogang
Yin, Tongming
author_sort Hou, Jing
collection PubMed
description Willows (Salix) and poplars (Populus) are dioecious plants in Salicaceae family. Sex chromosome in poplar genome was consistently reported to be associated with chromosome XIX. In contrast to poplar, this study revealed that chromosome XV was sex chromosome in willow. Previous studies revealed that both ZZ/ZW and XX/XY sex-determining systems could be present in some species of Populus. In this study, sex of S. suchowensis was found to be determined by the ZW system in which the female was the heterogametic gender. Gene syntenic and collinear comparisons revealed macrosynteny between sex chromosomes and the corresponding autosomes between these two lineages. By contrast, no syntenic segments were found to be shared between poplar's and willow's sex chromosomes. Syntenic analysis also revealed substantial chromosome rearrangements between willow's alternate sex chromatids. Since willow and poplar originate from a common ancestor, we proposed that evolution of autosomes into sex chromosomes in these two lineages occurred after their divergence. Results of this study indicate that sex chromosomes in Salicaceae are still at the early stage of evolutionary divergence. Additionally, this study provided valuable information for better understanding the genetics and evolution of sex chromosome in dioecious plants.
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spelling pubmed-43578722015-03-17 Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus Hou, Jing Ye, Ning Zhang, Defang Chen, Yingnan Fang, Lecheng Dai, Xiaogang Yin, Tongming Sci Rep Article Willows (Salix) and poplars (Populus) are dioecious plants in Salicaceae family. Sex chromosome in poplar genome was consistently reported to be associated with chromosome XIX. In contrast to poplar, this study revealed that chromosome XV was sex chromosome in willow. Previous studies revealed that both ZZ/ZW and XX/XY sex-determining systems could be present in some species of Populus. In this study, sex of S. suchowensis was found to be determined by the ZW system in which the female was the heterogametic gender. Gene syntenic and collinear comparisons revealed macrosynteny between sex chromosomes and the corresponding autosomes between these two lineages. By contrast, no syntenic segments were found to be shared between poplar's and willow's sex chromosomes. Syntenic analysis also revealed substantial chromosome rearrangements between willow's alternate sex chromatids. Since willow and poplar originate from a common ancestor, we proposed that evolution of autosomes into sex chromosomes in these two lineages occurred after their divergence. Results of this study indicate that sex chromosomes in Salicaceae are still at the early stage of evolutionary divergence. Additionally, this study provided valuable information for better understanding the genetics and evolution of sex chromosome in dioecious plants. Nature Publishing Group 2015-03-13 /pmc/articles/PMC4357872/ /pubmed/25766834 http://dx.doi.org/10.1038/srep09076 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Hou, Jing
Ye, Ning
Zhang, Defang
Chen, Yingnan
Fang, Lecheng
Dai, Xiaogang
Yin, Tongming
Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title_full Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title_fullStr Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title_full_unstemmed Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title_short Different autosomes evolved into sex chromosomes in the sister genera of Salix and Populus
title_sort different autosomes evolved into sex chromosomes in the sister genera of salix and populus
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4357872/
https://www.ncbi.nlm.nih.gov/pubmed/25766834
http://dx.doi.org/10.1038/srep09076
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