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Phylogenetic reconstruction of Gastrotricha based on molecular and morphological data

Grant number: 14/23856-0
Support type:BIOTA-FAPESP Program - Young Investigators Grants
Duration: November 01, 2015 - October 31, 2019
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal researcher:André Rinaldo Senna Garraffoni
Grantee:André Rinaldo Senna Garraffoni
Home Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Assoc. researchers:Anete Pedro Lourenço ; Ariane Campos ; Isadora Bosco ; Maikon Di Domenico ; Maria Balsamo ; Paola Visnardi Fassina ; Richard Hochberg ; Thiago Quintão Araújo
Associated scholarship(s):19/01955-0 - Rethinking the classification of the Dasydytidae family (Chaetonotida: Gastrotricha): integrative taxonomy, tree thinking and total evidence, BP.MS
18/25213-0 - Integrative taxonomy: combining multiple approaches to better delimitation of South American species of the genus Milnesium Doyère 1840 (Tardigrada: Apochela: Milnesiidae), BP.IC
18/11166-0 - Integrative Taxonomy, morphological phylogenetic analysis and evolution of muscular system of Thaumastodermatidae Remane, 1927 (Gastrotricha: Macrodasyida), BP.PD
+ associated scholarships 18/01242-1 - How many species of Chaetonotus polyspinosus Greuter, 1917 (Gastrotricha: Chaetonotida: Chaetonotidae) are there?, BP.TT
17/20312-8 - Cladistic analysis of the Dasydytidae family (Gastrotricha: Chaetonotida) and contribution to the increase of gastritric sequences on GenBank genetic database, BP.IC
15/25066-0 - Systematics of the rare genus Stylochaeta (Gastrotricha: Dasydytidae) in Brazil, BP.IC
15/24943-7 - Survey of the genus Heterolepipoderma (Gastrotricha: Chaetonotida: Chaetonotidae) in the states of Minas Gerais and São Paulo, BP.IC - associated scholarships


Gastrotrichs are aquatic microinvertebrates (less than 1 mm) and an important component of the benthos and phytofauna of marine and freshwater habitats. Despite the large number of specimens in different habitats, this taxon is poor studied possibly due to the small size and fragility of their bodies. Moreover, although the taxonomic studies of the group initiated in the end of nineteenth century, currently the phylogenetic relationships within Gastrotricha are still far from being considered satisfactory. Thus, this project has different aims: a) comparative morphological analysis of external structures using techniques of scanning electron microscopy (SEM), transmission electron microscopy (TEM) and confocal laser microscopy; b) construct a well-supported phylogenetic hypothesis of Gastrotricha based on molecular (nuclear and mitochondrial DNA) and morphological in order to better understand the evolutionary history of the taxon; c) formally describe the gastrotrichs collected by Garraffoni et al. (2010) and Araújo et al. (2013) and still identified until genus level; d) designate neotypes and document, using microscopy with differential interference contrast optics (DIC) and SEM, the 12 new species described by the Polish researcher Dr. Jacek Kisielewski, from State of São paulo, in the early 1990 e) consolidate the meiofauna collection of the Zoological Museum of the Institute of Biology, State University of Campinas (ZUEC / Unicamp). With these goals, this project will help to establish a research group new from Latin American focus on understanding the systematics, evolution and ecology of gastrotrics and other meiofaunal taxa poor understudied. (AU)

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Scientific publications (14)
(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)
MAGPALI, LETICIA; MACHADO, DANILO R. P.; ARAUJO, THIAGO Q.; GARRAFFONI, ANDRE R. S. Long distance dispersal and pseudo-cryptic species in Gastrotricha: first description of a new species (Chaetonotida, Chaetonotidae, Polymerurus) from an oceanic island with volcanic rocks. EUROPEAN JOURNAL OF TAXONOMY, v. 746, p. 62-93, APR 15 2021. Web of Science Citations: 0.
GARRAFFONI, ANDRE; SORENSEN, MARTIN V.; WORSAAE, KATRINE; DI DOMENICO, MAIKON; SALES, LILIAN P.; SANTOS, JESSIE; LOURENCO, ANETE. Geographical sampling bias on the assessment of endemism areas for marine meiobenthic fauna. CLADISTICS, MAR 2021. Web of Science Citations: 0.
MINOWA, AXELL; GARRAFFONI, ANDRE R. S. Seek and you shall find: new species of the rare genus Ornamentula (Gastrotricha: Chaetonotida) and first record outside of type-locality. Zoologia, v. 38, FEB 26 2021. Web of Science Citations: 0.
GUIDETTI, EMILIANA BROTTO; CAMPOS, ARIANE; BATISTAO, ALAN RODRIGO; DA SILVA, AMANDA TOGNOLI; BILATTO, CARLA GABRIELA; SALGADO, KELLY ACOSTA; ARAUJO, THIAGO QUINTAO; SENNA GARRAFFONI, ANDRE RINALDO. Gastrotrichs and tardigrades in a remnant of Atlantic Forest (Serra do Japi, SP, Brazil). Biota Neotropica, v. 21, n. 2 2021. Web of Science Citations: 0.
BOSCO, ISADORA; LOURENCO, ANETE P.; GUIDI, LORETTA; BALSAMO, MARIA; HOCHBERG, RICK; GARRAFFONI, ANDRE R. S. Integrative description of a new species of Acanthodasys Remane, 1927 (Gastrotricha, Macrodasyida, Thaumastodermatidae) based on four distinct morphological techniques and molecular data. ZOOLOGISCHER ANZEIGER, v. 286, p. 31-42, MAY 2020. Web of Science Citations: 1.
CAMPOS, ARIANE; TODARO, M. ANTONIO; GARRAFFONI, ANDRE RINALDO SENNA. A New Species of Paraturbanella Remane, 1927 (Gastrotricha, Macrodasyida) from the Brazilian Coast, and the Molecular Phylogeny of Turbanellidae Remane, 1926. DIVERSITY-BASEL, v. 12, n. 2 FEB 2020. Web of Science Citations: 1.
CAMPOS, ARIANE; SENNA GARRAFFONI, ANDRE RINALDO. A synopsis of knowledge, zoogeography and an online interactive map of Brazilian marine gastrotrichs. PeerJ, v. 7, OCT 18 2019. Web of Science Citations: 0.
GARRAFFONI, ANDRE R. S.; ARAUJO, THIAGO Q.; LOURENCO, ANETE P.; GUIDI, LORETTA; BALSAMO, MARIA. Integrative taxonomy of a new Redudasys species (Gastrotricha: Macrodasyida) sheds light on the invasion of fresh water habitats by macrodasyids. SCIENTIFIC REPORTS, v. 9, FEB 14 2019. Web of Science Citations: 1.
MINOWA, AXELL K.; GARRAFFONI, ANDRE R. S. Redescription of the dasydytid gastrotrich Haltidytes ooeides (Brunson, 1950) based on type material. ZOOKEYS, n. 785, p. 41-48, SEP 19 2018. Web of Science Citations: 0.
GARRAFFONI, ANDE R. S.; BALSAMO, MARIA. Is the ubiquitous distribution real for marine gastrotrichs? Detection of areas of endemism using Parsimony Analysis of Endemicity (PAE). Proceedings of the Biological Society of Washington, v. 130, n. 1, p. 197-210, NOV 13 2017. Web of Science Citations: 4.
SENNA GARRAFFONI, ANDRE RINALDO; ARAUJO, THIAGO QUINTAO. Phylogeny of Pseudostomella Swedmark, 1956 (Gastrotricha: Macrodasyida) base on morphological data and first insights on the historical biogeography of Thaumastodermatidae. Proceedings of the Biological Society of Washington, v. 130, n. 1, p. 222-238, NOV 13 2017. Web of Science Citations: 1.
GARRAFFONI, ANDRE R. S.; DI DOMENICO, MAIKON; HOCHBERG, RICK. New records of marine Gastrotricha from So Sebastio Island (Brazil) and the description of a new species. MARINE BIODIVERSITY, v. 47, n. 2, p. 451-459, JUN 2017. Web of Science Citations: 5.
GARRAFFONI, ANDRE R. S.; ARAUJO, THIAGO Q.; LOURENCO, ANETE P.; GUIDI, LORETTA; BALSAMO, MARIA. A new genus and new species of freshwater Chaetonotidae (Gastrotricha: Chaetonotida) from Brazil with phylogenetic position inferred from nuclear and mitochondrial DNA sequences. SYSTEMATICS AND BIODIVERSITY, v. 15, n. 1, p. 49-62, 2017. Web of Science Citations: 6.

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