The willow genome and divergent evolution from poplar after the common genome duplication

• 来源期刊: 细胞研究（英文版）
• 年，卷（期）: 2014,（10）
• 页码范围: 1274-1277
• 页数: 4页
• 语种: 中文
• DOI: 10.1038/cr.2014.83

摘要

Dear Editor, Willows (Salix) and poplars (Populus) are known worldwide as woody species with diverse uses [1,2].Although these two genera diverged from each other around the early Eocene [3],they share numerous traits,including the same chromosome number of 2n =38 and the common ‘Salicoid’ genome duplication with a high macrosynteny [4,5].However,most willow species flower early in their lives with short,small and sometimes indistinct stems,and thus differ from poplars in their life histories and habits [2].In addition,multiple inter-and intrachromosomal rearrangements have been detected involving chromosomal regions present in both lineages [6],suggestive of the likely genomic divergence after the common genome duplication.