The evolution of huge Y chromosomes in Coccinia grandis and its sister, Coccinia schimperi
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F22%3A00557231" target="_blank" >RIV/68081707:_____/22:00557231 - isvavai.cz</a>
Result on the web
<a href="https://royalsocietypublishing.org/doi/10.1098/rstb.2021.0294" target="_blank" >https://royalsocietypublishing.org/doi/10.1098/rstb.2021.0294</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1098/rstb.2021.0294" target="_blank" >10.1098/rstb.2021.0294</a>
Alternative languages
Result language
angličtina
Original language name
The evolution of huge Y chromosomes in Coccinia grandis and its sister, Coccinia schimperi
Original language description
Microscopically dimorphic sex chromosomes in plants are rare, reducing our ability to study them. One difficulty has been the paucity of cultivatable species pairs for cytogenetic, genomic and experimental work. Here, we study the newly recognized sisters Coccinia grandis and Coccinia schimperi, both with large Y chromosomes as we here show for Co. schimperi. We built genetic maps for male and female Co. grandis using a full-sibling family, inferred gene sex-linkage, and, with Co. schimperi transcriptome data, tested whether X- and Y-alleles group by species or by sex. Most sex-linked genes for which we could include outgroups grouped the X- and Y-alleles by species, but some 10% instead grouped the two species' X-alleles. There was no relationship between XY synonymous-site divergences in these genes and gene position on the non-recombining part of the X, suggesting recombination arrest shortly before or after species divergence, here dated to about 3.6 Ma. Coccinia grandis and Co. schimperi are the species pair with the most heteromorphic sex chromosomes in vascular plants (the condition in their sister remains unknown), and future work could use them to study mechanisms of Y chromosome enlargement and parallel degeneration, or to test Haldane's rule about lower hybrid fitness in the heterogametic sex.This article is part of the theme issue 'Sex determination and sex chromosome evolution in land plants'.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/GJ19-02476Y" target="_blank" >GJ19-02476Y: Identification and characterization of genes involved in sex determination in the dioecious plant Silene latifolia</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Philosophical Transactions of the Royal Society B-Biological Sciences
ISSN
0962-8436
e-ISSN
1471-2970
Volume of the periodical
377
Issue of the periodical within the volume
1850
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
20210294
UT code for WoS article
000781348400014
EID of the result in the Scopus database
2-s2.0-85126841909