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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.
Price: £25.00
Publisher: Burleigh Dodds Science Publishing
Imprint: Burleigh Dodds Science Publishing
Series: Burleigh Dodds Series in Agricultural Science
Publication Date:
23 November 2020
ISBN: 9781786769374
Format: eBook
BISACs:
1 Introduction 2 Pollen fertility 3 Flow-cytometry 4 Fluorescent in situ hybridization (FISH) 5 Use of repetitive sequences in banana research 6 Chromosomal detection of single-copy sequences 7 Molecular markers in linkage studies 8 Case study 9 Conclusion and future perspectives 10 Where to look for further information 11 References