Very low mitochondrial variability in a stingless bee endemic to cerrado

Autor(es)

Brito, Rute Magalhaes ^{[1, 2]} ; Francisco, Flavio de Oliveira ^[2] ; Francoso, Elaine ^[2] ; Santiago, Leandro Rodrigues ^[2] ; Arias, Maria Cristina ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Uberlandia, Inst Genet & Bioquim, BR-38400 Uberlandia, MG - Brazil

^[2] Univ Sao Paulo, Inst Biociencias, Dept Genet Biol & Evolut, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GENETICS AND MOLECULAR BIOLOGY; v. 36, n. 1, p. 124-128, 2013.
• Citações Web of Science: 9

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. (AU)

• Processo FAPESP: 01/04893-2 - Estudo de variabilidade genética e dinâmica populacional de duas espécies do gênero Partamona Schwarz, 1939, Hymenoptera, Apidae, Meliponinae com base na análise de DNA mitocondrial e microssatélites
• Beneficiário: Rute Magalhães Brito
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/50597-5 - Estudos populacionais e evolutivos em abelhas
• Beneficiário: Maria Cristina Arias
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/08546-4 - Estrutura genética de populações insulares e continentais de abelhas da Mata Atlântica
• Beneficiário: Flávio de Oliveira Francisco
• Modalidade de apoio: Bolsas no Brasil - Doutorado