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    Home > Biochemistry News > Biotechnology News > Wang Xixuan's task group: The composition of durian's genome.

    Wang Xixuan's task group: The composition of durian's genome.

    • Last Update: 2020-08-06
    • Source: Internet
    • Author: User
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    November 14 from North China University of Technology was informed that the university's Wang Xixuan team on the modern durian genome research made a new breakthrough.
    recently, Plant Physiology published an online research paper entitled "Recursive paleosloaploidizationdd the durian genome".
    team re-analyzed the durian genome and compared it with the cotton, cocoa and grape genomes, and found that the composition of durian genome seamounts was derived from a unique six-fold event and an older six-fold event shared with other gemini-leaf plants;
    , polysemy occurs extensively and repeatedly in the evolution of plants, which is one of the important achievements of genome sequencing in the field of botany.
    multipleization explains the occurrence, formation and rapid differentiation of important plant groups to a certain extent.
    However, determining the scale of the multifold ations and the impact on the genome is an extremely complex task, and inadequate analysis can lead to problematic findings.
    durian "skunk" is notorious, but because of the rich nutrition of fruit, enjoy the "king of fruit" reputation.
    the 2017 Durio zibethinus genome sequencing published, it suggested that durian and cotton share genome doubling events, but did not specify the nature and scale of the multiplex event.
    in fact, earlier studies have shown that cotton has a ten-fold ancestor.
    durian genome was published, Wang Xixuan's team reanalyzed the cotton genome of durian and evolution similar to grapes and cocoa trees, and used the software process of plant complex genome proposed by the group to carry out in-depth and detailed analysis of the inter-genome homologous gene dot matrix, the joint analysis of collinear gene and related evolutionary events, the common analysis of co-linear gene tree structure and the common analysis of durian-cotton collinear genes.
    study found that, in addition to the gemini plants nearly 130 million years ago, the durian and cotton each experienced an independent multi-multiplier event: the durian genome experienced an ancient six-fold event, occurring about 19-21 million years ago;
    Wang Xixuan's research points out that the possible explanation for the incorrect results previously obtained by the shared multifold event is: First, the evolution rate of the cotton genome after the ancient tentimes event accelerated, so that the rate of evolution of the cotton gene increased by more than 64% compared to durian;
    second, the plant genome is highly complex, and previous studies have not effectively separated genes produced by different evolutionary events.
    Source: Science.com.
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