Detailed Information on Publication Record
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.Basic information
Original name
The story of promiscuous crucifers: origin and genome evolution of an invasive species, Cardamine occulta (Brassicaceae), and its relatives
Authors
MANDÁKOVÁ, Terezie (203 Czech Republic, belonging to the institution), J. ZOZOMOVA-LIHOVA (703 Slovakia), H. KUDOH (392 Japan), Y.P. ZHAO (156 China), Martin LYSÁK (203 Czech Republic, guarantor, belonging to the institution) and K. MARHOLD (703 Slovakia)
Edition
Annals of Botany, Oxford, Oxford University Press, 2019, 0305-7364
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.005
RIV identification code
RIV/00216224:14740/19:00108121
Organization unit
Central European Institute of Technology
UT WoS
000493045000006
Keywords in English
Allopolyploidy; autopolyploidy; Asian Cardamine; Brassicaceae; centromere repositioning; chromosome rearrangements; comparative chromosome painting; diploidization; genome collinearity
Tags
International impact, Reviewed
Změněno: 31/3/2020 21:59, Mgr. Pavla Foltynová, Ph.D.
Abstract
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.
Links
| GA16-10809S, research and development project |
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| GA17-13029S, research and development project |
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| LQ1601, research and development project |
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