摘要
THE IMPORTANCE OF POLYPLOIDS Polyploids are typically classified as either autopolyploids or allo-polyploids(Figure 1).Autopolyploids result from whole-genome duplication within the same species,while allopolyploids derive from the hybridization of different species followed by chromo-some doubling.Taxonomically,plant allopolyploids are thought to be the most common polyploids,although autopolyploid plants and allopolyploid plants might be at parity in numbers(Barker et al.,2016).During speciation,polyploidization allows plants to adapt to different environments(Soltis et al.,2009).Mutation and hybridization increase the heterozygosity of the genome,while genome rearrangements during polyploidization lead to the formation of new chromosomes and new chromosome rearrangements,which complicate polyploid genomes and the following studies.
基金
supported by the Hong Kong Research Grants Council Area of Excellence Scheme(AoE/M-403/16)
Collaborative Research Fund(C4057-18EF)
CUHK Group Research Scheme 3110135
the Innovation and Technology Commission
Hong Kong Special Administrative Region Government to the State Key Laboratory of Agrobiotechnology(CUHK)
supported by NSF grant IOS-1822330.
