Changes in nymphal morphometric values and tarsal microstructures during postembryonic development in the Neotropical harvestman Heteromitobates albiscriptus (Opiliones: Gonyleptidae)

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dc.contributor.author Ramin, Alessandra Z.
dc.contributor.author Willemart, Rodrigo Hirata [UNIFESP]
dc.contributor.author Gnaspini, Pedro
dc.date.accessioned 2020-07-31T12:47:26Z
dc.date.available 2020-07-31T12:47:26Z
dc.date.issued 2016
dc.identifier http://dx.doi.org/10.1636/M15-83.1
dc.identifier.citation Journal Of Arachnology. College Park, v. 44, n. 3, p. 330-346, 2016.
dc.identifier.issn 0161-8202
dc.identifier.uri https://repositorio.unifesp.br/handle/11600/56832
dc.description.abstract The postembryonic development of Opiliones (Arachnida) includes three phases: larval, nymphal (with four to eight instars), and adult (when molts cease). The present study aimed to describe the postembryonic development of Heteromitobates albiscriptus (Mello-Leitao, 1932) (Gonyleptidae) including both a morphometric study and SEM analysis of two structures present in the tarsus of nymphs and adults: the "tarsal aggregate pores" (TAPs) and the "tarsal perforated organ" (TPO). The nymphal phase includes five stages, which can be easily recognized by morphometric values. In contrast to the pectinate tarsal claws found in legs III-IV of adults (the main synapomorphy of the genus Heteromitobates in the subfamily Goniosomatinae), nymphs bear smooth claws. First nymphs lack TAPs and TPOs. TAPs seem to have a precisely defined position in both prolateral and retrolateral faces of the tarsus. The number of pores in TAPs grows from three or four among second nymphs to around 20 among adults, and measure around 2.15 mu m in diameter with no clear difference between ages. An additional field of pores on legs III-IV ("ventral tarsal aggregate pores" vTAPs) was detected only among adults. The plates at the base and the apex of the TPOs differ from the ones in between. The length of the TPO and its number of plates increase with each molt. However, there is no discernible pattern of growth throughout the postembryonic development when taking into account both the average size of the plates (ranging between similar to 7-11 mu m) and the ratio of TPO length to tarsus length. en
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent 330-346
dc.language.iso eng
dc.publisher Amer Arachnological Soc
dc.relation.ispartof Journal Of Arachnology
dc.rights Acesso restrito
dc.subject Morphology en
dc.subject glandular opening en
dc.subject Gonyleptidae en
dc.subject Goniosomatinae en
dc.subject ontogeny en
dc.title Changes in nymphal morphometric values and tarsal microstructures during postembryonic development in the Neotropical harvestman Heteromitobates albiscriptus (Opiliones: Gonyleptidae) en
dc.type Artigo
dc.description.affiliation Univ Sao Paulo, Inst Biociencias, Dept Zool, Rua Matao,Travessa 14,321, BR-05508090 Sao Paulo, SP, Brazil
dc.description.affiliation Univ Sao Paulo, Escola Artes Ciencias Humanidades, Lab Ecol Sensorial & Comportamento Artropodes, Rua Arlindo Bettio 1000, BR-03828000 Sao Paulo, SP, Brazil
dc.description.affiliation Univ Fed Sao Paulo, Programa Posgrad Ecol & Evolucao, Campus Diadema,Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliation Univ Sao Paulo, Inst Biociencias, Programa Posgrad Zool, Rua Matao 321,Travessa 14,Cidade Univ, BR-05508090 Sao Paulo, SP, Brazil
dc.description.affiliationUnifesp Programa de Pós Graduação em Ecologia e Evolução, Universidade Federal de São Paulo (UNIFESP), Campus Diadema, Rua Professor Artur Riedel, 275, Jardim Eldorado, Diadema – SP, 09972-270 Brazil
dc.description.sponsorshipID FAPESP: 2010/08630-5
dc.description.sponsorshipID FAPESP: 1999/07943-9
dc.description.sponsorshipID CNPq: 304534/2007-2
dc.description.sponsorshipID CNPq: 304272/2010-8
dc.identifier.doi 10.1636/M15-83.1
dc.description.source Web of Science
dc.identifier.wos WOS:000388483600003
dc.coverage College Park
dc.citation.volume 44
dc.citation.issue 3



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