Reticulate allopolyploidy and subsequent dysploidy drive evolution and diversification in the cotton family

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F25%3A00142168" target="_blank" >RIV/00216224:14740/25:00142168 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41467-025-62644-7" target="_blank" >https://www.nature.com/articles/s41467-025-62644-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-025-62644-7" target="_blank" >10.1038/s41467-025-62644-7</a>

Result language
angličtina
Original language name
Reticulate allopolyploidy and subsequent dysploidy drive evolution and diversification in the cotton family
Original language description
Polyploidy and subsequent post-polyploid diploidization (PPD) are key drivers of plant genome evolution, yet their contributions to evolutionary success remain debated. Here, we analyze the Malvaceae family as an exemplary system for elucidating the evolutionary role of polyploidy and PPD in angiosperms, leveraging 11 high-quality chromosome-scale genomes from all nine subfamilies, including newly sequenced, near telomere-to-telomere assemblies from four of these subfamilies. Our findings reveal a complex reticulate paleoallopolyploidy history early in the diversification of the Malvadendrina clade, characterized by multiple rounds of species radiation punctuated by ancient allotetraploidization (Mal-beta) and allodecaploidization (Mal-alpha) events around the Cretaceous-Paleogene (K-Pg) boundary. We further reconstruct the evolutionary dynamics of PPD and find a strong correlation between dysploidy rate and taxonomic richness of the paleopolyploid subfamilies (R-2 >= 0.90, P < 1e-4), supporting the "polyploidy for survival and PPD for success" hypothesis. Overall, our study provides a comprehensive reconstruction of the evolutionary history of the Malvaceae and underscores the crucial role of polyploidy-dysploidy waves in shaping plant biodiversity.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10608 - Biochemistry and molecular biology

Project
<a href="/en/project/EH22_008%2F0004581" target="_blank" >EH22_008/0004581: TowArds Next GENeration Crops (TANGENC)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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