Chinese Bulletin of Botany ›› 2017, Vol. 52 ›› Issue (2): 179-187.DOI: 10.11983/CBB16041

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Evolutionary Pattern of the GBSS Gene Family in Plants

Wang Qian, Sun Wenjing, Bao Ying*()   

  1. School of Life Sciences, Qufu Normal University, Qufu 273165, China
  • Received:2016-03-08 Accepted:2016-08-08 Online:2017-03-01 Published:2017-04-05
  • Contact: Bao Ying
  • About author:# Co-first authors

Abstract: We analyzed the evolutionary pattern of the granule-bound starch-synthase genes (GBSS) in 20 land plants and 2 algae from whole-genome data with bioinformatics methods. A total of 42 genes were detected and their sequence structures were characterized. Phylogenetic analysis revealed that the GBSS gene family had an ancient origin and complex evolutionary history. It probably appeared in the early evolutionary stage of green plants, then mostly experienced lineage-specific expansion and copy loss during evolution, and finally was fixed in different plant taxa via functional divergence.

Key words: genome, phylogeny, gene duplication,, copy loss, functional, divergence