Advanced search
Start date
Betweenand

The developmental genetic basis of a remarkable genital innovation

Grant number: 19/27475-5
Support type:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): September 13, 2021
Effective date (End): September 12, 2022
Field of knowledge:Biological Sciences - Zoology - Morphology of Recent Groups
Principal researcher:Tatiana Teixeira Torres
Grantee:Bruno Celso Feltrin Genevcius
Supervisor abroad: Luis Fernando Casares Fernandez
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Centro Andaluz de Biología del Desarrollo (CABD), Spain  
Associated to the scholarship:18/18184-4 - EVOLUTION OF GENITAL COMPLEXITY: AN EVO-DEVO APPROACH USING PENTATOMIDS AS MODELS, BP.PD

Abstract

Genitalia perform a pivotal functional task in animals of internal fertilization, without which successful mating cannot be achieved. A consequence of the direct involvement of genitalia in reproduction is that they are often the first traits to diverge in speciation. At the evolutionary scale, this process translates into extremely high evolutionary rates and unprecedented levels of convergence. Despite this functional and evolutionary importance, we still have poor knowledge of the proximate causes behind the emergence of completely novel genital traits. Therefore, how genital complexity escalates through the course of evolution is still a major puzzle. In this context, an evo-devo approach is ideal for identifying the molecular mechanisms that may originate, constrain, and bias genitalic evolution. In this project, we propose to identify the genetic developmental bases of the emergence of a completely novel genital trait in the lineage of the predator stink bugs (Asopinae): the origin of the pseudoclaspers. This system offers an illustrative example of a remarkable novel genital structure associated with a complete reformulation of the functional system in copula. In a phylogenetic context, we will combine high throughput sequencing and high resolution in-situ hybridizations of asopine and non-asopine genitalia to ask the following questions: is the emergence of a novel genital structure facilitated by small or drastic changes in the identity, timing, and location of gene expression during development? What is the diversity of developmental pathways that may be recruited from other developmental contexts in the process? With this project, we expect to enlighten the processes underlying the evolution of genital complexity and complex phenotypic as a whole. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
Articles published in other media outlets (0 total):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)