Detailed Information on Publication Record
2022
Idahoa and Subularia: Hidden polyploid origins of two enigmatic genera of crucifers
DOGAN, Mert, Terezie MALÍK MANDÁKOVÁ, Xinyi GUO and Martin LYSÁKBasic information
Original name
Idahoa and Subularia: Hidden polyploid origins of two enigmatic genera of crucifers
Authors
DOGAN, Mert (792 Turkey, belonging to the institution), Terezie MALÍK MANDÁKOVÁ (203 Czech Republic, belonging to the institution), Xinyi GUO (156 China, belonging to the institution) and Martin LYSÁK (203 Czech Republic, guarantor, belonging to the institution)
Edition
American Journal of Botany, St Louis, Botanical Soc Amer Inc, 2022, 0002-9122
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.000
RIV identification code
RIV/00216224:14740/22:00127509
Organization unit
Central European Institute of Technology
UT WoS
000844517500001
Keywords in English
Brassicaceae; CES clade; Cruciferae; Hyb-Seq; Lineage V; mesopolyploidy; plastome phylogeny; repeatome; Subularieae; whole-genome duplication
Tags
International impact, Reviewed
Změněno: 15/10/2024 14:49, Ing. Martina Blahová
Abstract
V originále
Premise The monotypic Idahoa (I. scapigera) and the bispecific Subularia (S. aquatica and S. monticola) belong to Brassicaceae with unclear phylogenetic relationships and no tribal assignment. To fill this knowledge gap, we investigated these species and their closest relatives by combining cytogenomic and phylogenomic methods. Methods We used whole plastome sequences in maximum likelihood and Bayesian inference analyses. We tested the phylogenetic informativeness of shared genomic repeats. We combined nuclear gene tree reconciliation and comparative chromosome painting (CCP) to examine the occurrence of past whole-genome duplications (WGDs). Results The plastid data set corroborated the sister relationship between Idahoa and Subularia within the crucifer Lineage V but failed to resolve consistent topologies using both inference methods. The shared repetitive sequences provided conflicting pwhylogenetic signals. CCP analysis unexpectedly revealed that Idahoa (2n = 16) has a diploidized mesotetraploid genome, whereas two Subularia species (2n = 28 and 30) have diploidized mesoctoploid genomes. Several ancient allopolyploidy events have also been detected in closely related taxa (Chamira circaeoides, Cremolobeae, Eudemeae, and Notothlaspideae). Conclusions Our results suggest that the contentious phylogenetic placement of Idahoa and Subularia is best explained by two WGDs involving one or more shared parental genomes. The newly identified mesopolyploid genomes highlight the challenges of studying plant clades with complex polyploidy histories and provide a better framework for understanding genome evolution in the crucifer family.
Links
GA19-07487S, research and development project |
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LM2015047, research and development project |
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LM2018140, research and development project |
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90132, large research infrastructures |
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