Data/hora: 03/06/2024 06:21:41

Provedor de dados: | 74
País: | Brazil
Título: | Very low mitochondrial variability in a stingless bee endemic to cerrado
Autores: | Brito,Rute Magalhães; Francisco,Flávio de Oliveira; Françoso,Elaine; Santiago,Leandro Rodrigues; Arias,Maria Cristina.
Data: | 2013-01-01
Ano: | 2013
Palavras-chave: | Cerrado; MtDNA; Genetic variability; Partamona mulata.
Resumo: | Partamona mulata is a stingless bee species endemic to cerrado, a severely threatened phytogeographical domain. Clearing for pasture without proper soil treatment in the cerrado facilitates the proliferation of termite ground nests, which are the nesting sites for P. mulata. The genetic consequences of these changes in the cerrado environment for bee populations are still understudied. In this work, we analyzed the genetic diversity of 48 colonies of P. mulata collected throughout the species' distribution range by sequencing two mitochondrial genes, cytochrome oxidase I and cytochrome B. A very low polymorphism rate was observed when compared to another Partamona species from the Atlantic forest. Exclusive haplotypes were observed in two of the five areas sampled. The sharing of two haplotypes between collection sites separated by a distance greater than the flight range of queens indicates an ancient distribution for these haplotypes. The low haplotype and nucleotide diversity observed here suggests that P. mulata is either a young species or one that has been through population bottlenecks. Locally predominant and exclusive haplotypes (H2 and H4) may have been derived from local remnants through cerrado deforestation and the expansion of a few colonies with abundant nesting sites.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100018
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572013000100018
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.36 n.1 2013
Fonte: | info:eu-repo/semantics/openAccess