The willow genome and divergent evolution from poplar after the common genome duplication
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.
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This work was supported by the Key Forestry Public Welfare Project 201304102,the National Basic Research Program of China 2012CB114505,the National Natural Science Foundation of China 31125008 and the Program for Innovative Research Team of the Educational Department of China and in Universities of Jiangsu Province.Oak Ridge National Laboratory is managed by UT-Battelle,LLC,under contract DE-AC05-00OR22725 for the Department of Energy.
2014-10-31（万方平台首次上网日期，不代表论文的发表时间）
1274-1277
