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Evolution and biogeography of Astraea (Crotoneae, Euphorbiaceae) and phylogenetic relationships within Crotoneae

Grant number: 17/06171-2
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 01, 2017
Effective date (End): October 31, 2017
Field of knowledge:Biological Sciences - Botany - Plant Taxonomy
Principal Investigator:Inês Cordeiro
Grantee:Otávio Luis Marques da Silva
Supervisor: Ricarda Riina
Host Institution: Instituto de Botânica. Secretaria do Meio Ambiente (São Paulo - Estado). São Paulo , SP, Brazil
Research place: Real Jardín Botánico, Spain  
Associated to the scholarship:13/26501-6 - Taxonomic revision, phylogeny and biogeography of Astraea Klotzsch (Euphorbiaceae), BP.DR


Euphorbiaceae is one of the largest families within Angiosperms, with about 6300 species in more than 250 genera, an extraordinary morphological diversity and wide geographical distribution. Crotoneae, one of the largest tribes within the family, has undergone significant changes in its delimitation after the recent phylogenetic hypothesis, and it now comprehends, besides the giant Croton, other five small genera: Acidocroton (incl. Ophellantha), Astraea, Brasiliocroton, Sagotia and Sandwithia. Morphological characters, both vegetative and reproductive, are very diversified in the tribe, especially in Croton that includes 1200 species representing the greatest morphological diversity within Crotoneae. Most lineages of Crotoneae are found in the New World, with the exception of the Old World Croton species, which are all in C. subg. Croton. Great advances in the taxonomy and systematics of Croton have been published, and additional studies with Astraea and Brasiliocroton are also in development. Regarding the other genera, Sagotia and Sandwithia were recently revised, but out of the context of Crotoneae and an important gap in the knowledge of Acidocroton is evident. This project aims to gather data and build a stronger base about Crotoneae genera and to better understand phylogenetic relationships, geographical distribution and morphological diversity of Astraea within Crotoneae. Additionally, the project includes visits to important herbaria to analyze type collections of names linked to Astraea. (AU)

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Scientific publications (8)
(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)
DE SOUZA, LIDIAN RIBEIRO; MARQUES DA SILVA, OTAVIO LUIS; RIBEIRO DOS SANTOS, FRANCISCO DE ASSIS; CARNEIRO-TORRES, DANIELA SANTOS. Pollen morphology of Croton of the New World and pollen evolution of tribe Crotoneae (Euphorbiaceae). REVIEW OF PALAEOBOTANY AND PALYNOLOGY, v. 281, . (17/06171-2, 13/26501-6)
OTÁVIO LUIS MARQUES DA SILVA; MARIA BEATRIZ ROSSI CARUZO; INÊS CORDEIRO. Sinopse atualizada de Astraea Klotzsch (Crotoneae, Euphorbiaceae) para o Estado de São Paulo, Brasil. Hoehnea, v. 46, n. 3, . (13/26501-6, 17/06171-2)
DE SOUZA, LIDIAN R.; CARNEIRO-TORRES, DANIELA S.; DA SILVA, OTAVIO L. M.; CORDEIRO, INES; DOS SANTOS, FRANCISCO DE A. R.. Pollen morphology and evolution in Astraea (Euphorbiaceae: Crotoneae). PLANT SYSTEMATICS AND EVOLUTION, v. 306, n. 3, . (13/26501-6, 17/06171-2)
MARQUES SILVA, OTAVIO LUIS; RIINA, RICARDA; CORDEIRO, INES. Phylogeny and biogeography of Astraea with new insights into the evolutionary history of Crotoneae (Euphorbiaceae). Molecular Phylogenetics and Evolution, v. 145, . (17/06171-2, 13/26501-6)
MARQUES DA SILVA, OTAVIO LUIS; DIAS, PEDRO; RIINA, RICARDA; CORDEIRO, INES. Redelimitation of Astraea lobata (Euphorbiaceae) and other taxonomic rearrangements in Astraea. PHYTOTAXA, v. 404, n. 4, p. 127-136, . (13/26501-6, 17/06171-2)
DA SILVA, OTAVIO L. M.; CORDEIRO, INES. Taxonomic revision of Astraea (Euphorbiaceae). PLANT SYSTEMATICS AND EVOLUTION, v. 306, n. 2, . (17/06171-2, 13/26501-6)
SECCO, RICARDO DE S.; MARQUES DA SILVA, OTAVIO LUIS; CORDEIRO, INES. A new combination in Sagotia (Euphorbiaceae) with an updated key for the genus. PHYTOTAXA, v. 394, n. 3, p. 225-229, . (13/26501-6, 17/06171-2)
KULKAMP, JOSIMAR; MARQUES DA SILVA, OTAVIO LUIS; VALDUGA, EDUARDO; VIEIRA IGANCI, JOAO RICARDO; CORDEIRO, INES; BAUMGRATZ, JOSE FERNANDO A.. First record of Euphorbia pedersenii Subils (Euphorbiaceae) for Brazil. PHYTOTAXA, v. 379, n. 4, p. 287-292, . (13/26501-6, 17/06171-2)

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