In this paper the chromosome and EST isozyme of the seven Atractomorpha species in Guizhou are studied.
The study on the chromosome showed that the chromosome number of the 7 species is 2n ( ) =2X=19, and they are all terminal chromosome. The Karyotype formulas are 2n ( ) =19t and NF=19, all of which belong to 4B Karyotype. According to the relative length, the chromosomes can be divided into two groups, group L and group M, all of which have telocentric-C-banding, but not all of the...