Cytogenetics of structural rearrangements in Musa hybrids and cultivars

F. Ahmad, P.M. Bourke, Hugo A. Volkaert, G.H.J. Kema

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

Edible bananas are diploid or triploid Musa acuminata, or hybrids of M. acuminata x M. balbisi-ana, producing nutritious seedless fruit of different taste and structure. Breeding for high yield and host plant resistance to pathogens and pests as well as adaptation to abiotic stress of im-portant cultivars is challenging because of seedless and parthenocarpic fruit. In addition, cross-ings and selections of diploid cultivars and wild relatives are severely hampered by transloca-tions and inversions that are widespread in the M. acuminata populations. In this study we pre-sent an overview of cytogenetics, genetics and genomics research carried out to elucidate the meiotic chromosome behaviour in the hybrids and the mapping of genes, and to analyse the dif-ferent classes of DNA sequences in the banana genomes. Finally, we illustrate cytogenetic and linkage mapping of a diploid M. acuminata ssp. malaccensis using the diploid M. acuminata ‘Pa-hang’ as a genome reference and focus on the occurrence of structural rearrangements.
Original languageEnglish
Title of host publicationAchieving sustainable cultivation of bananas
EditorsGert Kema
PublisherBurleigh Dodds Science Publishing Limited
Pages31-58
Volume2
ISBN (Print)9781786763440
DOIs
Publication statusPublished - 23 Nov 2020

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