脓疮草复合体的染色体研究

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．

Studies on Chromosome Karyotype of Panzerina lanata J.Sojak Complex

Panzerina lanata J.Sojak complex,belonging to Panzerina Sojak (Labiatae),includes six species: P.lanata,P.alaschanica,P.kansuensis,P.albescens,P.argyracea and P.parviflora. Chromosome karyotypes of twelve populations representing five species (except for P.albescens) are reported at first time in this paper.The results are as follows:The karyotype formulas of four populations of P.lanata are 2n=2X=18= 18m, 2n=2X=18=10 m 8sm, 2n=2X =18=16m 2sm and 2n=2X =18=12m 6sm, 2n=2X =18=16m 2sm, 2n=2X =18=18m and 2n=2X =18=14m 4sm respectively.The karyotype formula of P.argyracea population is 2n=2X =18=16m 2sm.The karyotype formula of P.kansuensis population is 2n=2X =18=14m 4sm.The karyotype formula of P.parviflora population which distributes in Xinjiang Province is 2n=2X =18=14m 4sm.The karyotype formulas of this complex are relatively similar.