Publications by authors named "Vinh Ha Dinh Thi"

Our understanding of polyploid genome evolution is constrained because we cannot know the exact founders of a particular polyploid. To differentiate between founder effects and post polyploidization evolution, we use a pan-genomic approach to study the allotetraploid Brachypodium hybridum and its diploid progenitors. Comparative analysis suggests that most B.

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Brachypodium hybridum (2n = 30) is a natural allopolyploid with highly divergent sub-genomes derived from two extant diploid species, B. distachyon (2n = 10) and B. stacei (2n = 20) that differ in chromosome evolution and number.

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Article Synopsis
  • Oilseed rape (Brassica napus L.) originated ~7500 years ago from the hybridization of two species, B. rapa and B. oleracea, followed by chromosome doubling, a process known as allopolyploidy.
  • The genome study revealed complex interactions between the newly formed An and Cn subgenomes, showing structural and functional exchanges alongside the beginnings of gene loss and expression changes.
  • Natural selection in B. napus has notably promoted the reduction of glucosinolate genes while enhancing oil biosynthesis genes, shedding light on how allopolyploidy affects crop evolution and improvement.
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