Mitochondrial DNA diversity of orchid bee Euglossa fimbriata (Hymenoptera: Apidae) populations assessed by PCR-RFLP.
Euglossa fimbriata is a euglossine species widely distributed in Brazil and occurring primarily in Atlantic Forest remnants. In this study, the genetic mitochondrial structure of E. fimbriata from six Atlantic Forest fragments was studied by RFLP analysis of three PCR-amplified mtDNA gene segments (16S, COI-COII, and cyt b). Ten composite haplotypes were identified, six of which were exclusive and represented singleton mitotypes. Low haplotype diversity (0.085-0.289) and nucleotide diversity (0.000-0.002) were detected within samples. AMOVA partitioned 91.13% of the overall genetic variation within samples and 8.87% (phi(st) = 0.089; P < 0.05) among samples. Pairwise comparisons indicated high levels of differentiation among some pairs of samples (phi(st) = 0.161-0.218; P < 0.05). These high levels indicate that these populations of E. fimbriata, despite their highly fragmented landscape, apparently have not suffered loss of genetic variation, suggesting that this particular population is not currently endangered.
Suzuki
Karen M
KM
Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, PR 86051-990, Brazil.
Arias
Maria C
MC
Giangarelli
Douglas C
DC
Freiria
Gabriele A
GA
Sofia
Silvia H
SH
D000818:Animals; D001516:Bees / Q000235:genetics*; D001938:Brazil; D004272:DNA, Mitochondrial / Q000032:analysis / Q000235:genetics*; D014644:Genetic Variation / Q000502:physiology; D005828:Genetics, Population; D006239:Haplotypes; D008297:Male; D010802:Phylogeny; D016133:Polymerase Chain Reaction / Q000379:methods*; D012150:Polymorphism, Restriction Fragment Length / Q000235:genetics; D014197:Trees
D004272:DNA, Mitochondrial