title: Population structure of Litopenaeus schmitti (Decapoda: Penaeidae) from the Brazilian coast identified using six polymorphic microsatellite loci.
abstract: The population structure of the only Litopenaeus species occurring in Brazilian waters, the white shrimp L. schmitti, was surveyed by screening six microsatellite loci. High diversity (HE = 0.863; average number of alleles per locus = 37.8) was found across eight geographical locations (2 degrees S to 27 degrees S). Estimates of overall FST(0.0060) were low but significantly different from zero (P < 0.05). FST pairwise estimates and amova revealed a significant discontinuity around a major biogeographical boundary, near Cabo Frio, at 23 degrees S. This separation may have been caused either by historical or on-going hydrogeographical and/or selective factors.
authors: FECLESC & NUGEN, Universidade Estadual do Ceará, Av. Paranjana 1700, Fortaleza, CE 60740-000, Brazil. maggioni@uece.br
authors: R
authors: R
authors: Maggioni
authors: A D
authors: AD
authors: Rogers
authors: N
authors: N
authors: Maclean
mesh_terms: D000483:Alleles; D000818:Animals; D001938:Brazil; D016000:Cluster Analysis; D017931:DNA Primers; D005828:Genetics, Population; D005843:Geography; D018895:Microsatellite Repeats / Q000235:genetics; D033561:Penaeidae / Q000235:genetics*
chemical_list: D017931:DNA Primers