GENETIC DIVERSITY AND RESTORATION OF A RECALCITRANT CLONAL SEDGE (TETRARIA-CAPILLARIS CYPERACEAE)

被引：9

作者：

VONPERGER, BA ^{[1
]}

WEAVER, P ^{[1
]}

DIXON, KW ^{[1
]}

机构：

[1] KINGS PK & BOTAN GARDEN,PERTH,WA 6005,AUSTRALIA

来源：

BIODIVERSITY AND CONSERVATION | 1994年 / 3卷 / 03期

关键词：

SEDGE; CYPERACEAE; CLONE; ZYMOGRAM; GENETIC DIVERSITY; RECOVERY;

D O I：

10.1007/BF00055943

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

The genetic diversity of a clonal sedge (Tertraria capillaris) was assessed using isozyme analysis of 11 loci. Of 29 enzyme systems tested, eight were selected which gave interpretable bands with consistently good resolution. Though seedlings of the species are rarely observed in nature, isozyme analysis showed that for the study transects containing 100 sample plants, the majority of plants at the site were sexually rather than clonally derived. Young plants generated from embryos grown in vitro from excised seeds showed a high level of genetic diversity which could account for the genetic diversity measured in the parent population. In terms of restoration of the species, 85% of the assessed genetic diversity at the study site could be retained if 25 T. capillaris plants were taken at random. The study illustrates how genetic assessment coupled with tissue culture methods provides a feasible model for the recovery of most of the assessed local genetic diversity of a clonal species.

引用

页码：279 / 294

页数：16

共 25 条

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