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Taxonomic revision, phylogeny and biogeography of Astraea Klotzsch (Euphorbiaceae)

Grant number: 13/26501-6
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2014
Effective date (End): May 01, 2018
Field of knowledge:Biological Sciences - Botany
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Inês Cordeiro
Grantee:Otávio Luis Marques da Silva
Home Institution: Instituto de Botânica. Secretaria do Meio Ambiente (São Paulo - Estado). São Paulo , SP, Brazil
Associated scholarship(s):17/06171-2 - Evolution and biogeography of Astraea (Crotoneae, Euphorbiaceae) and phylogenetic relationships within Crotoneae, BE.EP.DR


Euphorbiaceae is considered a great taxonomical challenge because of its high number of species, extraordinary morphological diversity and wide geographical distribution. With 6300 species in 246 genera, is one of the biggest family of angiosperms and the biggest of Malpighiales, in which it is currently circunscribed. In Brazil, it is specially represented by tribe Crotoneae, mainly by the huge genus Croton. Another genus within this tribe is Astraea, until recently recognized as a section of Croton, but based on morphological and molecular data, is now recognized as a separated genus. Astraea accounts approximately 10 species, occuring in open vegetation and riparian forests on the neotropical region, mainly in Brazil. Although it is apparentely monophiyetic, the relationship among its species, as their circumscription, are poorly resolved yet. Thus, the present project aims to infer a phylogeny for the genus and, based on it, interpret its biogeographical history and the evolution of its morphological characters, and also evaluate the circumscription of its species, identifying new diagnostical morphological characters for them. (AU)

Scientific publications (4)
(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)
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, MAY 21 2019. Web of Science Citations: 0.
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, MAR 1 2019. Web of Science Citations: 0.
OTÁVIO LUIS MARQUES DA SILVA; MARIA BEATRIZ ROSSI CARUZO; INÊS CORDEIRO. An updated synopsis of Astraea Klotzsch (Crotoneae, Euphorbiaceae) for the State of São Paulo, Brazil. Hoehnea, v. 46, n. 3, p. -, 2019.
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, DEC 4 2018. Web of Science Citations: 0.

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