Maître de Conférence à l'Universidad Austral de Chile (UACH)

Research area

My research focuses on the evolution of the biological diversity, both at the community and population levels, and the process that are at the origin of these variations. In particular, I'm interested in determining what are the impacts of the environmental changes over the diversity (biological or genetic) of organisms located in the maritime coastal area. The aim is to understand how the global environmental changes, natural or linked to human activity, affect the survival of the populations.

I use principally molecular markers to study the population genetic diversity of seaweeds of important economical or ecological interest. Recently, part of my work was focused on unravelling the existence of cryptic sister species and studding their distribution, past population dynamics and possible events of hybridization and introgression in contact zones.

I am also interested in the evolution of life history traits and reproductive strategy in red algae and their genetic consequences. Various life cycles coexist among and within taxa of red algae and some species are characterised by complex lifecycle (haploid-diploid life cycle) that make them good models to test some hypotheses on the evolution of life cycles.

 

Publications


Publications 2014
 

  • Guillemin M-L, Valero M, Faugeron S,Nelson W, Destombe C (2014) Tracing the Trans-Pacific Evolutionary History of a Domesticated Seaweed (Gracilaria chilensis) with Archaeological and Genetic Data. PLoS ONE 9(12): e114039. doi:10.1371/journal.pone.0114039.
     
  • Guillemin M-L, Valenzuela P, Gaitan-Espitia JD & Destombe C (2014) Evidence of reproductive cost in the triphasic life history of the red alga Gracilaria chilensis (Gracilariales, Rhodophyta). Journal of Applied Phycology, 26, 569-575
     
  • Ramírez ME, Contreras-Porcia L, Guillemin M-L, Brodie J, Valdivia C, Flores-Molina M R, Núñez A, Bulboa Contador C & Lovazzano C (2014) Pyropia orbicularis sp. nov. (Rhodophyta, Bangiaceae) based on a population previously known as Porphyra columbina from the central coast of Chile. Phytotaxa, vol.158, p.133-153.