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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The Laterosensory Canal System in Epigean and Subterranean Ituglanis (Siluriformes: Trichomycteridae), With Comments About Troglomorphism and the Phylogeny of the Genus

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Author(s):
Rizzato, Pedro Pereira ; Bichuette, Maria Elina
Total Authors: 2
Document type: Journal article
Source: Journal of Morphology; v. 278, n. 1, p. 4-28, JAN 2017.
Web of Science Citations: 4
Abstract

The laterosensory system is a mechanosensory modality involved in many aspects of fish biology and behavior. Laterosensory perception may be crucial for individual survival, especially in habitats where other sensory modalities are generally useless, such as the permanently aphotic subterranean environment. In the present study, we describe the laterosensory canal system of epigean and subterranean species of the genus Ituglanis (Siluriformes: Trichomycteridae). With seven independent colonizations of the subterranean environment in a limited geographical range coupled with a high diversity of epigean forms, the genus is an excellent model for the study of morphological specialization to hypogean life. The comparison between epigean and subterranean species reveals a trend toward reduction of the laterosensory canal system in the subterranean species, coupled with higher intraspecific variability and asymmetry. This trend is mirrored in other subterranean fishes and in species living in different confined spaces, like the interstitial environment. Therefore, we propose that the reduction of the laterosensory canal system should be regarded as a troglomorphic (5 cave-related) character for subterranean fishes. We also comment about the patterns of the laterosensory canal system in trichomycterids and use the diversity of this system among species of Ituglanis to infer phylogenetic relationships within the genus. (C) 2016 Wiley Periodicals, Inc. (AU)

FAPESP's process: 09/15030-7 - DESCRIPTION OF TWO NEW SUBTERRANEAN CATFISH SPECIES (SILURIFORMES, TRICHOMYCTERIDAE) FROM CENTRAL AND NORTHEASTERN BRAZIL
Grantee:Pedro Pereira Rizzato
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 11/15429-7 - MORPHOLOGICAL AND EVOLUTIONARY PATTERNS FOR EXTERNAL AND SENSORY CHARACTERS IN SUBTERRANEAN SPECIES OF THE GENUS Ituglanis COSTA & BOCKMANN, 1993 (SILURIFORMES: TRIVHOMYCTERIDAE)
Grantee:Pedro Pereira Rizzato
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 11/06736-3 - Description of a new subterranean catfish species (Siluriformes: Trichomycteridae: Trichomycterinae) from Mambaí region, Central Brazil
Grantee:Pedro Pereira Rizzato
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 10/08459-4 - Are the São Desidério, Serra do Ramalho (southwest Bahia) and São Domingos (northeast Goiás) biodiversity hot spots karstic areas? Cave community analysis and protection criteria
Grantee:Maria Elina Bichuette
Support Opportunities: Regular Research Grants