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Chromosome painting in cultivated bananas and their wild relatives (Musa spp.) reveals differences in chromosome structure

SYSNO ASEP	0535188
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Chromosome painting in cultivated bananas and their wild relatives (Musa spp.) reveals differences in chromosome structure
Author(s)	Šimoníková, Denisa (UEB-Q)_ORCID Nĕmečková, Alžbĕta (UEB-Q)_ORCID Čížková, Jana (UEB-Q)_{RID, ORCID} Brown, A. (TZ) Swennen, R. (BE) Doležel, Jaroslav (UEB-Q)_{RID, ORCID} Hřibová, Eva (UEB-Q)_{RID, ORCID}
Number of authors	7
Article number	7915
Source Title	International Journal of Molecular Sciences. - : MDPI Roč. 21, č. 21 (2020), s. 1-17
Number of pages	17 s.
Language	eng - English
Country	CH - Switzerland
Keywords	Chromosome translocation ; Fluorescence in situ hybridization ; Karyotype evolution ; Oligo painting FISH ; Structural chromosome heterozygosity
Subject RIV	EB - Genetics ; Molecular Biology
OECD category	Agronomy, plant breeding and plant protection
R&D Projects	GA19-20303S GA ČR - Czech Science Foundation (CSF)
	LTT19009 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF16_019/0000827 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	UEB-Q - RVO:61389030
UT WOS	000588909000001
EID SCOPUS	85094587215
DOI	10.3390/ijms21217915
Annotation	Edible banana cultivars are diploid, triploid, or tetraploid hybrids, which originated by natural cross hybridization between subspecies of diploid Musa acuminata, or between M. acuminata and diploid Musa balbisiana. The participation of two other wild diploid species Musa schizocarpa and Musa textilis was also indicated by molecular studies. The fusion of gametes with structurally different chromosome sets may give rise to progenies with structural chromosome heterozygosity and reduced fertility due to aberrant chromosome pairing and unbalanced chromosome segregation. Only a few translocations have been classified on the genomic level so far, and a comprehensive molecular cytogenetic characterization of cultivars and species of the family Musaceae is still lacking. Fluorescence in situ hybridization (FISH) with chromosome-arm-specific oligo painting probes was used for comparative karyotype analysis in a set of wild Musa species and edible banana clones. The results revealed large differences in chromosome structure, discriminating individual accessions. These results permitted the identification of putative progenitors of cultivated clones and clarified the genomic constitution and evolution of aneuploid banana clones, which seem to be common among the polyploid banana accessions. New insights into the chromosome organization and structural chromosome changes will be a valuable asset in breeding programs, particularly in the selection of appropriate parents for cross hybridization.
Workplace	Institute of Experimental Botany
Contact	David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
Year of Publishing	2021
Electronic address	http://doi.org/10.3390/ijms21217915

Number of the records: 1