Genetic evidence for speciation in Cannabis (Cannabaceae)

被引：151

作者：

Hillig, KW ^{[1
]}

机构：

[1] Indiana Univ, Dept Biol, Bloomington, IN USA

来源：

GENETIC RESOURCES AND CROP EVOLUTION | 2005年 / 52卷 / 02期

关键词：

allozyme; Cannabis; evolution; genetics; origin; taxonomy;

D O I：

10.1007/s10722-003-4452-y

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Sample populations of 157 Cannabis accessions of diverse geographic origin were surveyed for allozyme variation at 17 gene loci. The frequencies of 52 alleles were subjected to principal components analysis. A scatter plot revealed two major groups of accessions. The sativa gene pool includes fiber/seed landraces from Europe, Asia Minor, and Central Asia, and ruderal populations from Eastern Europe. The indica gene pool includes fiber/seed landraces from eastern Asia, narrow-leafleted drug strains from southern Asia, Africa, and Latin America, wide-leafleted drug strains from Afghanistan and Pakistan, and feral populations from India and Nepal. A third putative gene pool includes ruderal populations from Central Asia. None of the previous taxonomic concepts that were tested adequately circumscribe the sativa and indica gene pools. A polytypic concept of Cannabis is proposed, which recognizes three species, C. sativa, C. indica and C. ruderalis, and seven putative taxa.

引用

页码：161 / 180

页数：20