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Hybrid zone and comparative historical demography of three species of birds in a contact zone in the Atlantic Forest

Grant number: 13/24645-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2014
Effective date (End): February 29, 2016
Field of knowledge:Biological Sciences - Genetics - Molecular Genetics and Genetics of Microorganisms
Principal researcher:Cristina Yumi Miyaki
Grantee:Denise Mendes Martins
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:13/50297-0 - Dimensions US-BIOTA São Paulo: a multidisciplinary framework for biodiversity prediction in the Brazilian Atlantic forest hotspot, AP.BTA.TEM

Abstract

Hybrid zones of sister lineages are ideal regions for investigating the role of geography and ecology in speciation process. The Vale do Rio Paraiba do Sul (VRPS), located in the Atlantic Forest, has been considered an important area of contact between closely related taxa for some vertebrate groups. As models of study, we will use lineages of three species of birds, Conopophaga lineata, Xiphorhynchus fuscus, and Sclerurus scansor, that have previous evidence of hybridization in this contact zone. Cline analyzes and methods based on coalescence will be used for looking into the historical, geographical and temporal contexts that generated the contact zone in VRPS, as well as the pattern of introgression of different DNA classes of the genome (mitochondrial, autosomal, and Z-linked chromosome) between sister lineages from the target species across an avian hybrid zone in VRPS.

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