Organellar genetic diversity in Penstemon haydenii (Scrophulariaceae):: An endangered plant species

被引：10

作者：

Caha, CA ^{[1
]}

Lee, DJ ^{[1
]}

Stubbendieck, J ^{[1
]}

机构：

[1] Univ Nebraska, Dept Agron, Lincoln, NE 68583 USA

来源：

AMERICAN JOURNAL OF BOTANY | 1998年 / 85卷 / 12期

关键词：

chloroplast DNA; endangered species; genetic diversity; mitochondrial DNA; Penstemon haydenii; restriction fragment length polymorphism (RFLP);

D O I：

10.2307/2446504

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Genetic variation was analyzed in the endangered prairie forb Penstemon haydenii. Individuals from nine populations were surveyed for chloroplast DNA (cpDNA) and mitochondrial DNA (mtDNA) variation. No cpDNA polymorphism was found. Analysis of mtDNA revealed variation within and among populations. A minimum of eight haplotypes were identified. The distribution of these genotypes suggests that there is some correlation between geographic and genetic distances, which reflects the minimal gene flow in this species.

引用

页码：1704 / 1709

页数：6

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