High-quality de novo assembly of the Eucommia ulmoides haploid genome provides new insights into evolution and rubber biosynthesis

摘要

a Somatic chromosome number of the haploids (2n = x = 17). b Ploidy levels obtained from 3-week-old first leaf samples from haploid plants by flow cytometric analysis. c Ploidy levels obtained from 3-week-old first leaf samples from a mixture of haploid and diploid plants by flow cytometric analysis. d A haploid plant (left) and diploid plant (right) of E. ulmoides