Professor at University of Campinas. Graduated at Ciências Biológicas at Universidade Estadual Paulista Júlio de Mesquita Filho, master's at Cellular Biology at Universidade Estadual de Campinas, doctorate at Cellular and Structural Biology at Universidade Estadual de Campinas, and post-doctorate in Zoology at Unesp-Rio Claro and in Evolution at University of Tennessee. Research area: cytogenomics and evolution of frogs. (Source: Lattes Curriculum)
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Contact zones between divergent lineages favor the investigation of reproductive barriers and thus contribute to the study of speciation processes. In anurans, sex chromosomes are very diverse among different groups, which raises the possible role of sex chromosomes in post-zygotic reproductive isolation and, consequently, in speciation. In contact zones where hybrids have less adaptive v…
The genus Pseudis comprises six frogs of the family Hylidae and only P. tocantins had heteromorphic sex chromosomes detected by classical cytogenetics. In this species, the W chromosome is larger than the Z chromosome and has a large heterochromatic block located between the centromere and the nucleolus organizer region (NOR) in the long arm. This large heterochromatic band is enriched f…
High level of genetic and cytogenetic variation has been found among populations assigned to the taxa Physalaemus cuvieri and Physalaemus ephippifer. Species delimitation analyses based on DNA sequences suggest the presence of at least four species in this group, which is referred to as Physalaemus cuvieri - Physalaemus ephippifer complex. Although low genetic divergence between P. ephipp…
BackgroundWhile some transposable elements (TEs) have been found in the sequenced genomes of frog species, detailed studies of these elements have been lacking. In this work, we investigated the occurrence of Rex1 element, which is widespread in fish, in anurans of the genus Physalaemus. We isolated and characterized the reverse transcriptase (RT)-coding sequences of Rex1 elements of five…
(Only some records are available in English at this moment)
The species group Physalaemus gracilis is a clade composed of six species: P. lisei, P. gracilis, P. evangelistai, P. carrizorum, P. jordanensis and P. barrioi. Cytogenetic data on this group are still scarce in the literature, being limited to the description of the karyotypes of P. barrioi, P. gracilis, P. lisei and P. carrizorum, and the chromosome mapping of the PcP190 satDNA in these…
Reproductive isolation is a mechanism associated with diversification. Ecophenotypic incompatibilities act as pre-zygotic mechanisms, typically associated with sexual selection pressures. When those barriers are non-existent or ineffective, post-zygotic isolation mechanisms (chromosomal or genomic incompatibilities) may occur, promoting low hybrids adaptability. The reinforcement theory p…
(Only some records are available in English at this moment)
Biological diversification relies on speciation, a process associated with reproductive isolation. In our project FAPESP #2020/11125-2, we are investigating the diversification process of Neotropical Barker frogs in the Physalaemus cuvieri-Physalaemus ephippifer clade (Leiuperinae, Leptodactylidae), specifically focusing on a striking hybrid zone. Sexual selection theory postulates that e…
The recent finding of high cytogenetic and genetic diversity among populations related phylogenetically to the taxaPhysalaemus cuvieri and Physalaemus ephippifer raises new questions about the evolution of these anurans. The presence of sex chromosome heteromorphism in the lineage of P. ephippifer, which is absent in the other lineages yet studied, makes the investigation of species delim…
| 1 / 1 | Ongoing research grants |
| 14 / 12 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 18 / 9 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 1 / 1 | Completed scholarships abroad |
| 36 / 25 | All research grants and scholarships |
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