![]() ![]() The wintersweet genome appears to have undergone two whole-genome duplication (WGD) events: a recent WGD event representing an independent event specific to the Calycanthaceae and an ancient WGD event shared by Laurales. Based on the analyses of the long branch attraction, incomplete lineage sorting, sparse taxon sampling, and other factors, we suggest that a bifurcating tree may not fully represent the complex early diversification of the angiosperms and that magnoliids are most likely sister to the eudicots. ![]() The genome comprised 11 super-scaffolds (chromosomes) with a total size of 737.03 Mb. Here, the whole genome of red flower wintersweet, a new wintersweet type, was sequenced and assembled with high quality. In addition, wintersweet belongs to magnoliids, and the phylogenetic position of magnoliids remains to be determined conclusively. However, the molecular mechanisms underlying the intriguing flower color development among different wintersweet groups are still largely unknown. Its color is mainly determined by the middle tepals. ![]() Wintersweet ( Chimonanthus praecox) is one of the most important ornamental plants. ![]()
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