生物
竹子
进化生物学
基因组
优势(遗传学)
多元化(营销策略)
遗传学
计算生物学
基因
生态学
业务
营销
作者
Ping Ma,Yunlong Liu,Cen Guo,Guihua Jin,Zhenhua Guo,Ling Feng Mao,Yun‐Gui Yang,Liang-Zhong Niu,Yujiao Wang,Lynn G. Clark,Elizabeth A. Kellogg,Zu-Chang Xu,Xia‐Ying Ye,Jing‐Xia Liu,Mengyuan Zhou,Yan Luo,Yang Yang,Douglas E. Soltis,Jeffrey L. Bennetzen,Pamela S. Soltis,Li D
标识
DOI:10.1038/s41588-024-01683-0
摘要
Abstract Polyploidy (genome duplication) is a pivotal force in evolution. However, the interactions between parental genomes in a polyploid nucleus, frequently involving subgenome dominance, are poorly understood. Here we showcase analyses of a bamboo system (Poaceae: Bambusoideae) comprising a series of lineages from diploid (herbaceous) to tetraploid and hexaploid (woody), with 11 chromosome-level de novo genome assemblies and 476 transcriptome samples. We find that woody bamboo subgenomes exhibit stunning karyotype stability, with parallel subgenome dominance in the two tetraploid clades and a gradual shift of dominance in the hexaploid clade. Allopolyploidization and subgenome dominance have shaped the evolution of tree-like lignified culms, rapid growth and synchronous flowering characteristic of woody bamboos as large grasses. Our work provides insights into genome dominance in a remarkable polyploid system, including its dependence on genomic context and its ability to switch which subgenomes are dominant over evolutionary time.
科研通智能强力驱动
Strongly Powered by AbleSci AI