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Organellar genetic diversity in Penstemon haydenii (Scrophulariaceae): an endangered plant species
Author(s) -
Caha Carol A.,
Lee Donald J.,
Stubbendieck James
Publication year - 1998
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.2307/2446504
Subject(s) - biology , chloroplast dna , endangered species , genetic diversity , scrophulariaceae , mitochondrial dna , genetic variation , gene flow , forb , evolutionary biology , botany , genetics , ecology , population , gene , phylogenetics , habitat , demography , sociology , grassland
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.