Genetic diversity and the reproductive system in related species of antirrhinum.

ABSTRACT:

Background and aims

Seven related species of Antirrhinum (A. siculum, A. majus, A. latifolium, A. linkianum, A. litigiosum, A. cirrhigherum and A. tortuosum) were studied in order to compare levels of genetic variation and its partitioning in them, and to check relationships between genetic patterns and the reproductive system.

Methods

Eight hundred and fifty-one plants were screened for variability at 13 allozyme loci by means of horizontal starch gel electrophoresis. Parameters of genetic diversity and its partitioning, the inbreeding coefficient as well as an indirect estimate of gene flow based on the equation: Nm = (1 - G(ST))/4G(ST), were calculated.

Key results

Genetic variability in A. siculum was found to be the lowest known in the genus. Mean values of F(IT)

SUBMITTER: Mateu-Andres I 

PROVIDER: S-EPMC2803598 | biostudies-literature | 2006 Nov

REPOSITORIES: biostudies-literature