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Taxonomy, molecular phylogenetics, and evolution of host specialization in two genera of Neotropical fig wasps (Pegoscapus Cameron, 1906 and Idarnes Walker, 1843; Hymenoptera, Agaonidae)

Grant number: 15/06430-2
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 2015
Effective date (End): January 31, 2019
Field of knowledge:Biological Sciences - Zoology
Principal Investigator:Rodrigo Augusto Santinelo Pereira
Grantee:Fernando Henrique Antoniolli Farache
Home Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Associated scholarship(s):17/00647-5 - Next-generation sequencing applied to the study of systematics and diversification of neotropical fig wasps (Hymenoptera: Agaonidae), BE.EP.PD

Abstract

Host plant selection by phytophagous insects is driven by multiple factors, and even generalist species show preference hierarchies due to the host quality as a resource. The Neotropical Agaonidae wasps represent an interesting model for studying the evolution of host specialization, due to the high specificity of its association with Ficus (Moraceae) and their diversified life histories and degrees of host specialization. Such wasps oviposit in Ficus inflorescences. Some of them are pollinators (Agaoninae) and establish a mutualistic relationship with fig trees, whilst other wasps (Sycophaginae) do not pollinate and are gallers or kleptoparasites. Since these groups show different life histories, we expect that they will present different patterns of diversification in relation with their hosts. Thus, pollinators, gallers, and kleptoparasites should show different degrees of host specialization. Fig wasp taxonomy was poorly studied and a small proportion of the Neotropical fauna is described. Moreover, few phylogenetic hypotheses in specific level are available, which hampers comparative analyses concerning these groups. In the present study we intend to analyze the evolution of host specificity in two genera of Neotropical Agaonidae: the pollinators Pegoscapus Cameron, 1906, and the non-pollinators Idarnes Walker, 1843. To do so, we intend to analyze these genera morphologically, review their taxonomy, and establish phylogenetic hypotheses for these groups in a multilocus approach. Then, we will be able to reconstruct evolutionary history characters of host specificity in both genera, which will allow us to understand how these characters diversified within these groups of insects.

Scientific publications (5)
(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)
ANTONIOLLI FARACHE, FERNANDO HENRIQUE; PEREIRA, CECILIA BERNARDO; KOSCHNITZKE, CRISTIANA; BARROS, LEVI OLIVEIRA; DE CASTRO SOUZA, ELMECELLI MORAES; FELICIO, DANIEL TIRAPELI; GATTI, FABIAN; CARDONA, WILLIAM; RASPLUS, JEAN-YVES; SANTINELO PEREIRA, RODRIGO AUGUSTO. The unknown followers: Discovery of a new species of Sycobia Walker (Hymenoptera: Epichrysomallinae) associated with Ficus benjamina L. (Moraceae) in the Neotropical region. JOURNAL OF HYMENOPTERA RESEARCH, v. 67, p. 85-102, DEC 31 2018. Web of Science Citations: 0.
ELIAS, LARISSA GALANTE; KJELLBERG, FINN; ANTONIOLLI FARACHE, FERNANDO HENRIQUE; ALMEIDA, EDUARDO A. B.; RASPLUS, JEAN-YVES; CRUAUD, ASTRID; PENG, YAN-QIONG; YANG, DA-RONG; SANTINELO PEREIRA, RODRIGO AUGUSTO. Ovipositor morphology correlates with life history evolution in agaonid fig wasps. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY, v. 90, n. SI, p. 109-116, JUL 2018. Web of Science Citations: 5.
FARACHE, F. H. A.; CRUAUD, A.; RASPLUS, J-Y; CEREZINI, M. T.; RATTIS, L.; KJELLBERG, F.; PEREIRA, R. A. S. Insights into the structure of plant-insect communities: Specialism and generalism in a regional set of non-pollinating fig wasp communities. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY, v. 90, n. SI, p. 49-59, JUL 2018. Web of Science Citations: 4.
FARACHE, FERNANDO H. A.; CRUAUD, ASTRID; GENSON, GWENAELLE; RASPLUS, JEAN-YVES; PEREIRA, RODRIGO A. S. Taxonomic revision and molecular phylogenetics of the Idarnes incertus species-group (Hymenoptera, Agaonidae, Sycophaginae). PeerJ, v. 5, JAN 5 2017. Web of Science Citations: 2.
FARACHE, FERNANDO H. A.; RASPLUS, JEAN-YVES; AZAR, DANY; PEREIRA, RODRIGO A. S.; COMPTON, STEPHEN G. First record of a non-pollinating fig wasp (Hymenoptera: Sycophaginae) from Dominican amber, with estimation of the size of its host figs. Journal of Natural History, v. 50, n. 35-36, p. 2237-2247, 2016. Web of Science Citations: 5.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.