2022
Idahoa and Subularia: Hidden polyploid origins of two enigmatic genera of crucifers
DOGAN, Mert, Terezie MALÍK MANDÁKOVÁ, Xinyi GUO a Martin LYSÁKZákladní údaje
Originální název
Idahoa and Subularia: Hidden polyploid origins of two enigmatic genera of crucifers
Autoři
DOGAN, Mert (792 Turecko, domácí), Terezie MALÍK MANDÁKOVÁ (203 Česká republika, domácí), Xinyi GUO (156 Čína, domácí) a Martin LYSÁK (203 Česká republika, garant, domácí)
Vydání
American Journal of Botany, St Louis, Botanical Soc Amer Inc, 2022, 0002-9122
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.000
Kód RIV
RIV/00216224:14740/22:00127509
Organizační jednotka
Středoevropský technologický institut
UT WoS
000844517500001
Klíčová slova anglicky
Brassicaceae; CES clade; Cruciferae; Hyb-Seq; Lineage V; mesopolyploidy; plastome phylogeny; repeatome; Subularieae; whole-genome duplication
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 10. 2024 14:49, Ing. Martina Blahová
Anotace
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.
Návaznosti
GA19-07487S, projekt VaV |
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LM2015047, projekt VaV |
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LM2018140, projekt VaV |
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90132, velká výzkumná infrastruktura |
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