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Distribution, phylogeographic structure and genetic variation in Brazilian freshwater red algae (Batrachospermales - Rhodophyta)

Grant number: 15/01360-6
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): March 28, 2015
Effective date (End): February 19, 2016
Field of knowledge:Biological Sciences - Microbiology
Principal Investigator:Orlando Necchi Junior
Grantee:Monica Orlandi Paiano
Supervisor: Olivier Emiel Denise Pierre August De Clerck
Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
Research place: Ghent University (UGent), Belgium  
Associated to the scholarship:13/06436-5 - Distribution, phylogeographic structure and genetic variation in populations of some species of Rhodophyta from the order Batrachospermales in Brazil., BP.DR


The project proposes the study of populations of species of Rhodophyta , the Batrachospermales order, based on currently available information (morphological and molecular) and new analysis proposed here. The following hypotheses will be tested: 1) the population genetic structure should reveal distinct pattern between species, which is related to historical biogeographic connections of each species; 2) the number of haplotypes within a single population is small (typically 1 or 2), on the other hand, a much higher number of haplotypes (typically more than 5) in the group of all populations for each species; 3) the genetic similarity between populations will be progressively smaller the farther away from each other, with greater genetic divergence inter than intrapopulational for all the markers used ; 4) genetic divergence trends for each of the markers tested will be congruent . To test them , the following activities are proposed : 1) to evaluate the genetic variability patterns of populations of several species of Batrachospermales order (Rhodophyta) in Brazil by analyzing molecular markers of nuclear and mitochondrial genomes and also check for this correlation variation with those environmental data obtained ; 2) to determine the diversity levels of the nuclear internal transcriber spacer (ITS), intergenic spacer between the cytochrome oxidase subunit 2 and cytochrome oxidase subunit 3 genes with the flanking gene regions and the cox 1barcoding region (which encodes the I subunit cytochrome c oxidase 1); 3) estimate the intra and inter genetic variability of these three molecular markers ; 4) check for each species investigated the existence of genetic divergence levels between the strains detected. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PAIANO, MONICA ORLANDI; DEL CORTONA, ANDREA; COSTA, JOANA F.; LIU, SHAO-LUN; VERBRUGGEN, HEROEN; DE CLERCK, OLIVIER; NECCHI, JR., ORLANDO. Organization of plastid genomes in the freshwater red algal order Batrachospermales (Rhodophyta). JOURNAL OF PHYCOLOGY, v. 54, n. 1, p. 25-33, . (15/01360-6, 12/12016-6, 13/06436-5, 16/07808-1)

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