水杉是北美红杉的一个亲本吗？

本文根据有关细胞学和形态学资料.不同意Schlarbaum等以红杉没有水杉的具长着丝点区域的标记染色体来否定水杉(属)是红杉的亲本,同时认为,他们提出某种杉木属植物为红杉提供了染色体组而是它的亲本的意见难以成立,从而支持Stebbins的假设,水杉(属)可能是北美红杉的一个亲本。而且,它或许还是一个父本。

IS METASEQUOIA AN ANCESTOR OF SEQUOIA SEMPERVIRENS?

Schlarbaum et al, recognized that an ancestor of Sequoia sempervirens which had not the marker chromosome pairs was not Metatsequoia but a species of Cunninghamia, that had contributed a genome to Sequoia. According to the karyology and morphology data, the present author did not agree with the opinion and supported that Metasequoia was an ancestor of Sequoia suggested by Stebbins. Metasequoia may be the male parent,