GENETIC-VARIATION IN THE DIATOM FRAGILARIA-CAPUCINA (FRAGILARIACEAE) ALONG A LATITUDINAL GRADIENT ACROSS NORTH-AMERICA

Authors
LEWIS RJ JENSEN SI DENICOLA DM MILLER VI HOAGLAND KD ERNST SG
Citation
Rj. Lewis et al., GENETIC-VARIATION IN THE DIATOM FRAGILARIA-CAPUCINA (FRAGILARIACEAE) ALONG A LATITUDINAL GRADIENT ACROSS NORTH-AMERICA, Plant systematics and evolution, 204(1-2), 1997, pp. 99-108
Citations number
43
Categorie Soggetti
Plant Sciences
Journal title
Plant systematics and evolution → ACNP
ISSN journal
03782697
Volume
204
Issue
1-2
Year of publication
1997
Pages
99 - 108
Database
ISI
SICI code
0378-2697(1997)204:1-2<99:GITDF(>2.0.ZU;2-1
Abstract
Genetic variation in 126 clones of the planktonic diatom, Fragilaria c apucina, collected from seven lakes from Manitoba to Texas, was determ ined by RAPD analysis. Five primers yielded 48 scorable RAPD fragments in 123 unique combinations. Patterns of genetic variation were analys ed by cluster analysis, which showed that most clones grouped together according to the site from which they were collected. This pattern in genetic variation may be a result of the geographically disjunct natu re of these populations and/or the different environmental conditions, especially temperature, in the different lakes.