Distribution and Morphological Features of Taste Buds in the Zebrafish, Danio rerio

Ohkubo, Yasuyuki; Masubuchi, Masahiko; Fujioka, Kazuto; Yusuke, Tomita; Matsushita, Tetsuya; Ohsuga, Kenji; Marui, Takayuki

doi:10.1016/s1349-0079(05)80012-x

Cited by 11 publications

(9 citation statements)

References 20 publications

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“…Since they increase the surface available for receptors, barbels are supposed to have an adaptive function, notably for species that do not favour the sense of vision when foraging on the ground (Gilbert & Bailey, 1972; Gosline, 1978; Banarescu & Coad, 1991; Sibbing, 1991; Lombarte & Aguirre, 1997). However, rather than barbels, taste buds, which are chemosensory endorgans distributed on external skin and in the oral cavity–but at highest densities on barbels—are the main constituent for chemical stimulus reception (Ohkubo et al ., 2005). As such, chemo‐reception can be effective with or without the presence of barbels on the facial taste system (Lammens & Hoogenboezem, 1991; Eram & Michel, 2005).…”

Section: Discussionmentioning

confidence: 99%

Genus‐level supertree of Cyprinidae (Actinopterygii: Cypriniformes), partitioned qualitative clade support and test of macro‐evolutionary scenarios

2009

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We used the supertree approach of matrix representation with parsimony to reconstruct to date the most exhaustive (genus-level) phylogeny of Cyprinidae. The supertree of Cyprinidae, representing 397 taxa (237 nominal genera) and 990 pseudocharacters, was well resolved (96%) through extended consensus majority rule, although 36 nodes (9.4%) were unsupported. The proportion of shared taxa among source trees was very low after calculation of the taxonomic coverage index (TCI = 0.059), which is proposed here as a more accurate alternative to the usual ratios calculated from the number of pseudo-characters or source trees per taxon. We define a new index for the calculation of partitioned qualitative clade support, the partitioned rQS ((p)rQS), which offers a straightforward visualization of the relative supports of source tree partitions at supertree nodes.The use of (p)rQS showed that the molecular source tree partition contributed to most node supports within the supertree of Cyprinidae (73%, contra 21% for the morphological partition) and evidenced a fair proportion of conflict at nodes between the two partitions (21%), notably reflecting (i) the greater number and resolution of molecular source trees, and (ii) potential morphological convergences. Most of the higher-level relationships within Cyprinidae were supported by both morphological and molecular source tree partitions. Our supertree showed a well-supported dichotomy between a clade consisting of a 'barbine' + 'rasborine' lineage, sister group to (Barbinae [paraphyletic], (Cyprininae, Labeoninae)), and a clade consisting of other rasborines (large polytomy) and the two monophyletic groups ((Tincinae, Tanichthys), (Ecocarpia, (Acheilognathinae, (Gobioninae, Leuciscinae)))) and (Squaliobarbinae, (Xenocyprinae, Cultrinae)). Through the non-monophyly of almost all the traditional subfamilies of Cyprinidae and 34 genera, our supertree exemplified the taxonomic chaos that reigns in the classification of the family. It also highlighted that further efforts should aim at increasing taxonomic sampling and generating alternative phylogenetic signals, notably for the still poorly apprehended Tincinae, Squaliobarbinae, Acheilognathinae, Gobioninae, and Rasborinae, the latter representing a key taxon for the understanding of early cyprinid evolution. Our supertree also proved useful for testing macro-evolutionary scenarios at a wide taxonomic scale. Ancestral reconstructions using linear parsimony confirmed that the Oriental tropical region was the centre of origin of Cyprinidae, and identified three Oriental-to-Palaearctic, two Palaearctic-to-Nearctic, and one Oriental-to-Afrotropical major migration events. On the other hand, we almost completely rejected the hypothesis of presence of barbels as a plesiomorphic condition within Cyprinidae (although ambiguous for maxillary barbels of the Barbinae-Cyprininae type). The supertree of Cyprinidae serves as a basis to discuss the applications and bias of the newly proposed (p)rQS, to provide future guidelines for a better a...

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Section: Discussionmentioning

confidence: 99%

Genus‐level supertree of Cyprinidae (Actinopterygii: Cypriniformes), partitioned qualitative clade support and test of macro‐evolutionary scenarios

2009

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“…The teleost TBs are found throughout the body epithelium, especially in the oral and oropharyngeal cavity, the head, or in external organs such as the lips, barbels or fins (Hansen et al,2002). Barbels containing TBs are reported in Mullidae (Aguirre and Lombarte,2000), Cyprinidae (Ohkubo et al,2005), Siluridae (Ovalle and Shinn,1977; Fujimoto and Yamamoto,1980), Gadidae (Harvey and Batty,2002) and Cottidae (Sato,1977). Chemosensory cells are found in the fish epidermis showing a single microvillus apex, or even brush‐like microvilli (Kotrschal,1991,1996; Hansen et al,2002; LeClair and Topczewski,2010), in contact with the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

The barbel‐like specialization of the pelvic fins in Ophidion rochei (Ophidiidae)

Codina

Kéver

Compère

et al. 2012

Journal of Morphology

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Pelvic fins in Ophidion rochei are reduced to four rod-like structures situated at the ventral jaws. While the fish is swimming, they make continuous sweeping movements on the bottom. This paper examines and describes the anatomy of the pelvic fins to determine the possible functions of these appendages in relation to the mode of life of this fish species. The pelvic fins of O. rochei show strong similarities with barbels because they have identical sensory cell types, (taste buds, solitary chemosensory cells, and goblet cells), innervations and sensory function. Having nocturnal habits, specialization of pelvic fins in O. rochei corresponds to a supporting role to the life in dark environment.

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“…Food or other types of particles may deflect in the taste buds and synergistically produce mechanical impulse or chemosensory signal which could be transmitted from the sensory cells to the brain centers (Reutter et al, ; Reutter & Breipohl, ; review Kasumyan, ). That is why it was suggested that rich occurrences of taste buds increase the probability of detecting and locating accuracy in areas of limited light penetration (Viña et al, ) and such adaptation can be assigned to the characteristics feature of animals that dwell in turbid waters (Ohkubo et al, ). In case of hilsa, the taste buds are intraoral and diverse.…”

Section: Discussionmentioning

confidence: 99%

“…In case of hilsa, the taste buds are intraoral and diverse. Ohkubo et al () reported that such fish with rich diversity of taste buds are specialized for the detection of chemical stimuli in an opaque environment. Tripathi and Mittal () also reported in a bottom dwelling fish Noemacheilus botia , which lives in turbid and aphotic water and contains large numbers of intraoral taste buds in their tongue.…”

Section: Discussionmentioning

confidence: 99%

Gustatory ultrastructures of an amphihaline migratory fish hilsaTenualosa ilisha

Malick

Chatterjee

Bhattacharya

et al. 2020

Microscopy Res & Technique

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Distribution and Morphological Features of Taste Buds in the Zebrafish, Danio rerio

Cited by 11 publications

References 20 publications

Genus‐level supertree of Cyprinidae (Actinopterygii: Cypriniformes), partitioned qualitative clade support and test of macro‐evolutionary scenarios

Genus‐level supertree of Cyprinidae (Actinopterygii: Cypriniformes), partitioned qualitative clade support and test of macro‐evolutionary scenarios

The barbel‐like specialization of the pelvic fins in Ophidion rochei (Ophidiidae)

Gustatory ultrastructures of an amphihaline migratory fish hilsaTenualosa ilisha

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