Gene flow and geographic variation in natural populations of Alnus acuminata ssp. arguta (Fagales: Betulaceae) in Costa Rica and Panama

 

Αποθηκεύτηκε σε:
Λεπτομέρειες βιβλιογραφικής εγγραφής
Συγγραφείς: Murillo, Olman, Rocha, Oscar
Μορφή: artículo original
Κατάσταση:Versión publicada
Ημερομηνία έκδοσης:1999
Περιγραφή:Seventeen natural populations in Costa Rica and Panama were used to asses geneflow and geographic patterns of genetic variation in tbis tree species. Gene flow analysis was based on the methods of rare alleles and FST (Index of genetic similarity M), using the only four polymorphic gene loci among 22 investigated (PGI-B, PGM-A, MNR-A and IDH-A). The geographic variation analysis was based on Pearson 's correlations between four geographic and 1 4 genetic variables. Sorne evidence of isolation by distance and a weak gene flow among geographic regions was found. Patterns of elinal variation in relation to altitude (r = -0.62 for genetic diversity) and latitude (r = -0.77 for PGI-B3) were also observed, supporting the hypothesis of isolation by distance. No private alleles were found at the single population level.
Χώρα:Portal de Revistas UCR
Ίδρυμα:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Γλώσσα:Inglés
OAI Identifier:oai:portal.ucr.ac.cr:article/19231
Διαθέσιμο Online:https://revistas.ucr.ac.cr/index.php/rbt/article/view/19231
Λέξη-Κλειδί :alnus acuminata
isozymes
gene flow
eline
geographic variation
Costa Rica
Panarna