The IICR (inverse instantaneous coalescence rate) is time- and sample-dependent parameter that was originally introduced by Olivier Mazet in an article published in 2016 in Heredity. Imagine that you have two haploid genomes, one question a population geneticist would ask is “what could I say with so much genomic data about the demographic history of … More Distinguishing structure from panmixia: Simona Grusea submitted our latest article to Theoretical Population Biology
Gabriele Sgarlata, still in Madagascar, has just submitted the last version of his manuscript on the genetic diversity and demographic history of the mouse lemur Microcebus tavaratra. We are waiting for the final and official acceptance letter, but based on the latest comments of the editor of the International Journal of Primatology, the paper should … More Gabriele Sgarlata submitted the latest version of his manuscript on Microcebus tavaratra
In the last couple of weeks Lounes Chikhi has been in Madagascar, mainly in Antananarivo, the capital, and in Mahajanga, in the NW of Madagascar. He met with Barbara Le Pors who is responsible for the field work and for all the students. He also met with our Malagasy colleagues who have made that project … More Lounes Chikhi is in Madagascar
Guillaume Besnard, head of the Toulouse INFRAGECO team, in the Evolution & Diversité Biologique (EDB) lab, opened a position for a post-doctoral researcher to work on the population genomics of Madagascar olive trees (genus Noronhia). The position was advertised at the beginning of the summer and we were lucky enough to have several very good … More New member to join Guillaume Besnard’s team in Toulouse!
At the IGC we have been using our internally developed program to simulate complex demographic scenarios, SINS (Simulating INdividuals in Space), to simulate scenarios of habitat loss and fragmentation and to study how these events may affect the genetic patterns of populations. SINS helps us comparing different explanations for the data that we observe in the … More SINS is around the corner
Yesterday, we sent the corrected proofs of our first INFRAGECO manuscript to Heredity. In this manuscript we extend the original work of Mazet et al (2016) on the IICR (inverse instantaneous coalescence rate). In a few words, we study the properties of the IICR under various models of population structure. We thus try to understand … More Proofs of the first article of the INFRAGECO project sent yesterday to the journal Heredity (nature publishing group) !
Guillaume Besnard, PI of the EDB team just came back from a mission in Madagascar. There he joined the team led by Barbara Le Pors and with the help of Emmanuel Rasolondraibe, Tantely Ralantoharijaona, Jacquis Randriamaroson, and local guides hired in the different localities, they collected samples from various species, including Noronhia (Madagascar olive tree), … More Guillaume Besnard is back from field work in Madagascar
Beginning of June 2017 The study site “Ambanjabe” in the western part of Ankarafantsika National Park displays a network of forest fragments separated by grassland and lavakas (erosion zones). It is situated on a plateau and therefore especially in the dry season, it is very dry and much less green as the vegetation in the … More News from the “Team Radespiel”
This summer two students, Inês Lourenço and Alexandre Reis, from the Instituto Superior Técnico have joined us at the IGC. As part of a collaboration between the Instiuto Gulbenkian de Ciencia and Instituto Superior Técnico, Inês and Alex will be assisting the PCG group with improving the performance of our simulation programs while gaining hands … More The INFRAGECO group is joined by students from Instituto Superior Técnico.
The third field mission of the season took place in the humid forests of spectacular Montagne d’Ambre National Park. Montagne d’Ambre is a 1475m volcanic massive that is covered by lush montane rainforest. The mountain has its own cold and humid micro-climate that contrasts with the dry surrounding regions. It is also one of … More 3rd fieldwork mission of the team from Instituto Gulbenkian de Ciência – IGC