Systematics and phylogeography of the Brazilian Atlantic Forest endemic harvestmen Neosadocus Mello-LeitAo, 1926 (Arachnida: Opiliones: Gonyleptidae)

Autor(es)

Castro-Pereira, Daniel ^[1] ; Peres, Elen A. ^[1] ; Pinto-da-Rocha, Ricardo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PLoS One; v. 16, n. 6 JUN 2 2021.
• Citações Web of Science: 0

Resumo

Neosadocus harvestmen are endemic to the Southern Brazilian Atlantic Forest. Although they are conspicuous and display great morphological variation, their evolutionary history and the biogeographical events underlying their diversification and distribution are still unknown. This contribution about Neosadocus includes the following: a taxonomic revision; a molecular phylogenetic analysis using mitochondrial and nuclear markers; an investigation of the genetic structure and species' diversity in a phylogeographical framework. Our results show that Neosadocus is a monophyletic group and comprises four species: N. bufo, N. maximus, N. robustus and N. misandrus (which we did not find on fieldwork and only studied the female holotype). There is astonishing male polymorphism in N. robustus, mostly related to reproductive strategies. The following synonymies have resulted from this work: ``Bunoweyhia{''} variabilis Mello-LeitAo, 1935 = Neosadocus bufo (Mello-LeitAo, 1926); and ``Bunoweyhia{''} minor Mello-LeitAo, 1935 = Neosadocus maximus (Giltay, 1928). Most divergences occurred during the Miocene, a geological epoch marked by intense orogenic and climatic events in the Brazilian Atlantic Forest. Intraspecific analyses indicate strong population structure, a pattern congruent with the general behavior and physiological constraints of Neotropical harvestmen. (AU)

• Processo FAPESP: 13/50297-0 - Dimensions US-BIOTA São Paulo: integrando disciplinas para a predição da biodiversidade da Floresta Atlântica no Brasil
• Beneficiário: Cristina Yumi Miyaki
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 16/13129-0 - Biogeografia, revisão sistemática e filogenia do gênero Neosadocus Mello-Leitão, 1926 (Arachnida: Opiliones: Gonyleptidae) da Mata Atlântica
• Beneficiário: Daniel Castro Pereira
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica