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Molecular characterization of taxonomically related groups of Phytoseiidae, Ascidae sensu lato and Rhodacaridae, potentially useful in the biological control of pest organisms

Grant number: 12/21412-2
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): May 01, 2013
Effective date (End): June 30, 2016
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Principal Investigator:Gilberto José de Moraes
Grantee:Nazer Famah Sourassou
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil


Mesostigmatid mites are used as biological control agents of pest mites in several countries, including Brazil. Most predators studied belong to Phytoseiidae and Ascidae sensu lato, but other families, as Rhodacaridae, also include potential control agents. Due to their potential, predatory mites have received special attention from taxonomists. Recently, Ascidae sensu lato was divided into three families: Ascidae sensu stricto, Blattisociidae and Melicharidae. This modification was done taking into account only morphological characteristics. Considerable efforts have been devoted to the molecular characterization of phytoseiid and to a lesser extent, Ascidae sensu lato, but nothing to this effect has been published for Rhodacaridae. Certain groups of Phytoseiidae, Ascidae sensu lato and Rhodacaridae are morphologically very similar, making it difficult to correctly classify the corresponding species in one of these families. This suggests the phylogenetic relationship of these. To assess this relationship, phylogenetic analysis based on molecular characteristics can be very useful. This project envisions the establishment of a group of experts in the use of morphological and molecular tools to study the taxonomic relationship of these mites. The group of taxonomists of ESALQ-USP is qualified to conduct the morphological identification of groups considered, and the candidate to conduct this study is qualified to conduct the molecular characterization and the phylogenetic analysis. The objective of this project is to conduct this joint evaluation, helping to understand the evolutionary and biogeographic histories of these predators. (AU)

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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)
SOURASSOU, NAZER FAMAH; SARMENTO, RENATO ALMEIDA; DE MORAES, GILBERTO JOSE. Description of a new species of the Amblydromalus limonicus (Acari: Phytoseiidae) species group based on morphological and molecular evidences. INTERNATIONAL JOURNAL OF ACAROLOGY, v. 43, n. 5, p. 374-379, . (12/21412-2)
SOURASSOU, NAZER FAMAH; MORAES, GILBERTO JOSE; SANTOS, JANDIR CRUZ. Orolaelaps (Acari: Mesostigmata: Melicharidae): description of two new species, redescription of Orolaelaps quisqualis and new characterisation of the genus. Zootaxa, v. 4039, n. 2, p. 312-322, . (12/21412-2)
SOURASSOU, NAZER FAMAH; DE MORAES, GILBERTO JOSE; DELALIBERA JUNIOR, ITALO; CORREA, ALBERTO SOARES. Phylogenetic analysis of Ascidae sensu lato and related groups (Acari: Mesostigmata: Gamasina) based on nuclear ribosomal DNA partial sequences. SYSTEMATIC AND APPLIED ACAROLOGY, v. 20, n. 3, p. 225-240, . (12/21412-2)
RUEDA-RAMIREZ, DIANA; SANTOS, JANDIR C.; SOURASSOU, NAZER FAMAH; DEMITE, PETERSON R.; PUERTA-GONZALEZ, ANDRES; DE MORAES, GILBERTO J.. Complementary description of Africoseius lativentris and placement of Africoseius in Podocinidae (Acari, Mesostigmata) based on molecular and morphological evidences. SYSTEMATIC AND APPLIED ACAROLOGY, v. 24, n. 12, p. 2369-2394, . (11/08941-3, 12/21412-2)

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