Convergent adaptation to a marginal habitat by homoploid hybrids and polyploid ecads in the seaweed genus Fucus. | - CCMAR -

Journal Article

TítuloConvergent adaptation to a marginal habitat by homoploid hybrids and polyploid ecads in the seaweed genus Fucus.
Publication TypeJournal Article
AuthorsCoyer, JA, Hoarau, G, Pearson, GA, Serrão, EA, Stam, WT, Olsen, JL
Year of Publication2006
JournalBiol Lett
Volume2
Questão3
Date Published2006 Sep 22
Pagination405-8
ISSN1744-9561
Palavras-chaveAdaptation, Physiological, Crosses, Genetic, Ecology, Ecosystem, Environment, Fucus, Genes, Plant, Genetic Variation, Genetics, Population, Iceland, Ireland, Microsatellite Repeats, Polymorphism, Restriction Fragment Length, Species Specificity
Abstract

Hybridization and polyploidy are two major sources of genetic variability that can lead to adaptation in new habitats. Most species of the brown algal genus Fucus are found along wave-swept rocky shores of the Northern Hemisphere, but some species have adapted to brackish and salt marsh habitats. Using five microsatellite loci and mtDNA RFLP, we characterize two populations of morphologically similar, muscoides-like Fucus inhabiting salt marshes in Iceland and Ireland. The Icelandic genotypes were consistent with Fucus vesiculosus x Fucus spiralis F1 hybrids with asymmetrical hybridization, whereas the Irish ones consisted primarily of polyploid F. vesiculosus.

DOI10.1098/rsbl.2006.0489
Sapientia

http://www.ncbi.nlm.nih.gov/pubmed/17148415?dopt=Abstract

Alternate JournalBiol. Lett.
PubMed ID17148415
PubMed Central IDPMC1686178