2019
The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives
MANDÁKOVÁ, Terezie, J. ZOZOMOVA-LIHOVA, H. KUDOH, Y.P. ZHAO, Martin LYSÁK et. al.Základní údaje
Originální název
The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives
Autoři
MANDÁKOVÁ, Terezie (203 Česká republika, domácí), J. ZOZOMOVA-LIHOVA (703 Slovensko), H. KUDOH (392 Japonsko), Y.P. ZHAO (156 Čína), Martin LYSÁK (203 Česká republika, garant, domácí) a K. MARHOLD (703 Slovensko)
Vydání
Annals of Botany, Oxford, Oxford University Press, 2019, 0305-7364
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.005
Kód RIV
RIV/00216224:14740/19:00108121
Organizační jednotka
Středoevropský technologický institut
UT WoS
000493045000006
Klíčová slova anglicky
Allopolyploidy; autopolyploidy; Asian Cardamine; Brassicaceae; centromere repositioning; chromosome rearrangements; comparative chromosome painting; diploidization; genome collinearity
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 31. 3. 2020 21:59, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Background and Aims Cardamine occulta (Brassicaceae) is an octoploid weedy species (2n = 8x = 64) originated in Eastern Asia. It has been introduced to other continents including Europe and considered to be an invasive species. Despite its wide distribution, the polyploid origin of C. occulta remained unexplored. The feasibility of comparative chromosome painting (CCP) in crucifers allowed us to elucidate the origin and genome evolution in Cardamine species. We aimed to investigate the genome structure of C. occulta in comparison with its tetraploid (2n = 4x = 32, C. kokaiensis and C. scutata) and octoploid (2n = 8x = 64, C. dentipetala) relatives. Methods Genomic in situ hybridization (GISH) and large-scale CCP were applied to uncover the parental genomes and chromosome composition of the investigated Cardamine species. Key Results All investigated species descended from a common ancestral Cardamine genome (n = 8), structurally resembling the Ancestral Crucifer Karyotype (n = 8), but differentiated by a translocation between chromosomes AK6 and AK8. Allotetraploid C. scutata originated by hybridization between two diploid species, C. parviflora and C. amara (2n = 2x = 16). By contrast, C. kokaiensis has an autotetraploid origin from a parental genome related to C. parviflora. Interestingly, octoploid C. occulta probably originated through hybridization between the tetraploids C. scutata and C. kokaiensis. The octoploid genome of C. dentipetala probably originated from C. scutata via autopolyploidization. Except for five species-specific centromere repositionings and one pericentric inversion post-dating the polyploidization events, the parental subgenomes remained stable in the tetra- and octoploids. Conclusions Comparative genome structure, origin and evolutionary history was reconstructed in C. occulta and related species. For the first time, whole-genome cytogenomic maps were established for octoploid plants. Post-polyploid evolution in Asian Cardamine polyploids has not been associated with descending dysploidy and intergenomic rearrangements. The combination of different parental (sub)genomes adapted to distinct habitats provides an evolutionary advantage to newly formed polyploids by occupying new ecological niches.
Návaznosti
GA16-10809S, projekt VaV |
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GA17-13029S, projekt VaV |
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LQ1601, projekt VaV |
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