CV Lattes
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Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia (IB) (Institutional affiliation from the last research proposal) Birthplace: Brazil
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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The role of chromosomal variations in speciation processes is widely supported by theoretical models, but empirical data on chromosomal speciation are still scarce. Groups of lineages undergoing divergence that still exhibit contact zones and evidence of hybridization represent valuable models for studies on this topic. In this project, we will focus on two species complexes of Anura with…
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…
(Only some records are available in English at this moment)
The Physalaemus cuvieri - Physalaemus ephippifer species complex harbors expressive karyotypic diversity, an the NORs represent the main diagnostic chromosome marker of the distinct genetic lineages from this group. In addition, the heteromorphic sex chromosomes found in P. ephippifer and their homologous chromosomes from L1 were previously described and are NOR-bearing. The association o…
The Edentulus clade of the genus Engystomops is composed of E. pustulosus and the E. freibergi-E. petersi species complex, which includes between five and seven species. Three species within this complex exhibit heteromorphic X and Y sex chromosomes, while two others do not present chromosomal sexual heteromorphism. The sex chromosomes of E. pustulosus, the sister species to the E. freibe…
Biodiversity on islands has attracted the attention of many scientists throughout history, from Darwin's studies to MacArthur and Wilson's model of island biogeography and modern models of isolation effects. The island rule, which places size modification as a result of this isolation on islands, has attracted many researchers to not only try to understand its causes but also predict its …
The species complex Physalaemus cuvieri-Physalaemus ephippifer has a complex evolutionary and taxonomic history. Recently, the recognition of four independent evolutionary lineages in "P. cuvieri" (Lineages 1-4 of "P. cuvieri") and of its paraphyly with respect to P. ephippifer represented notable advances in the phylogenetic study of this clade. Posteriorly, secondary contact zones betwe…
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…
(Only some records are available in English at this moment)
Biodiversity on islands has attracted the attention of many scientists throughout history, from Darwin's studies to MacArthur and Wilson's model of island biogeography and modern models of the effects of isolation. The island rule, which places the change in size as a result of this isolation on islands, has attracted many researchers to not only try to understand its causes but also pred…
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 grants |
| 16 / 13 | Completed research grants |
| 2 / 2 | Ongoing scholarships in Brazil |
| 21 / 12 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 2 / 2 | Completed scholarships abroad |
| 43 / 31 | All research grants and scholarships |
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