脓疮草复合体的染色体研究

• 作 者: 李素英 曹瑞 赵一之
• 机 构: 内蒙古大学生态与环境科学系
• 出 处: 内蒙古大学学报(自然科学版)
• 发表日期: 1999年02期
• 关键词: 脓疮草属 核型图 染色体研究 染色体形态 复合体 着丝点 有丝分裂中期 细胞分类学 草原化荒漠 陈瑞阳

国产脓疮草复合体五个种１２个居群的染色体核型：Ｐ．ｌａｎａｔａ四个居群分别为２ｎ＝２Ｘ＝１８＝１８ｍ，２ｎ＝２Ｘ＝１８＝１０ｍ＋８ｓｍ，２ｎ＝２Ｘ＝１８＝１６ｍ＋２ｓｍ及２ｎ＝２Ｘ＝１８＝１４ｍ＋４ｓｍ；Ｐ．ａｌａｓｃｈａｎｉｃａ四个居群分别为２ｎ＝２Ｘ＝１８＝１２ｍ＋６ｓｍ，２ｎ＝２Ｘ＝１８＝１６ｍ＋２ｓｍ，２ｎ＝２Ｘ＝１８＝１８ｍ及２ｎ＝２Ｘ＝１８＝１４ｍ＋４ｓｍ；Ｐ．ａｒｇｙｒａｃｅａ两个居群均为２ｎ＝２Ｘ＝１８＝１６ｍ＋２ｓｍ；Ｐ．ｋａｎｓｕｅｎｓｉｓ一个居群为２ｎ＝２Ｘ＝１８＝１４ｍ＋４ｓｍ；Ｐ．ｐａｒｖｉｆｌｏｒａ为２ｎ＝２Ｘ＝１８＝１４ｍ＋４ｓｍ．这些核型相对一致．

Chronic karyotypes of five populations of 12 species of domestic purulent grass complex: P. The four populations of lanata are respectively 2n = 2X = 18 = 18m, 2n = 2X = 18 = 10m + 8sm, 2n = 2X = 18 = 16m + 2sm and 2n = 2X = 18 = 14m + 4sm; alaschanica four populations were 2n = 2X = 18 = 12m + 6sm, 2n = 2X = 18 = 16m + 2sm, 2n = 2X = 18 = 18m and 2n = 2X = 18 = 14m + 4sm; Argyracea two populations are 2n = 2X = 18 = 16m +2 sm; P. A population of kansuensis 2n = 2X = 18 = 14m + 4sm; P. parviflora is 2n = 2X = 18 = 14m + 4sm. These karyotypes are relatively consistent.