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

Scientific Reports
Jing HouTongming Yin

Abstract

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...Continue Reading

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Citations

Jun 27, 2015·Molecular Ecology·Dmitry A Filatov
Dec 15, 2015·Annual Review of Plant Biology·Deborah Charlesworth
Dec 10, 2016·Scientific Reports·Wei GuoYingnan Chen
Apr 30, 2017·Molecular Biology and Evolution·Pascal PucholtSofia Berlin
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Mar 25, 2017·BMC Genomics·Pascal PucholtSofia Berlin
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Jul 23, 2018·Annals of Botany·Roman HobzaBohuslav Janousek
Jul 20, 2018·Molecular Genetics and Genomics : MGG·Ran ZhouStephen P DiFazio
Apr 10, 2019·Horticulture Research·Jing HouTongming Yin
Feb 2, 2019·Scientific Reports·Veronika BalounovaBohuslav Janousek
Aug 7, 2019·International Journal of Molecular Sciences·Meng-Meng LiMa Tao
Aug 6, 2016·Genome Biology and Evolution·Aline MuyleGabriel Ab Marais
Apr 10, 2017·Genome Biology and Evolution·Aline MuyleGabriel Ab Marais
Oct 8, 2020·Molecular Biology and Evolution·Wenlu YangTao Ma
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Nov 20, 2020·Nature Communications·Liangjiao XueTongming Yin
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Aug 19, 2021·American Journal of Botany·Fred E GoukerLawrence B Smart

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Methods Mentioned

BETA
genotyping
PCR

Software Mentioned

MCScanX
GeneMapper
BLASTP

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