谷歌浏览器插件
订阅小程序
在清言上使用

A Haplotype-Resolved Reference Genome Ofquercus Albasheds Light on the Evolutionary History of Oaks

bioRxiv (Cold Spring Harbor Laboratory)(2024)

引用 0|浏览4
暂无评分
摘要
Summary White oak ( Quercus alba ) is an abundant forest tree species across eastern North America that is ecologically, culturally, and economically important. We report the first haplotype-resolved chromosome-scale genome assembly of Q. alba and conduct comparative analyses of genome structure and gene content against other published Fagaceae genomes. In addition, we probe the genetic diversity of this widespread species and investigate its phylogenetic relationships with other oaks using whole-genome data. Our genome assembly comprises two haplotypes each consisting of 12 chromosomes. We found that the species has high genetic diversity, much of which predates the divergence of Q. alba from other oak species and likely impacts divergence time estimation in Quercus . Our phylogenetic results highlight phylogenetic discordance across the genus and suggest different relationships among North American oaks than have been reported previously. Despite a high preservation of chromosome synteny and genome size across the Quercus phylogeny, certain gene families have undergone rapid changes in size including resistance genes (R genes). The white oak genome represents a major new resource for studying genome diversity and evolution in Quercus and forest trees more generally. Future research will continue to reveal the full scope of genomic diversity across the white oak clade.
更多
查看译文
关键词
phylogenetic tree,Phylogenetic Analysis,Phylogeny
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要