Journal Article
Molecular phylogeny unveils hidden diversity of hillstream loaches (Cypriniformes: Cobitoidea) in the northern Western Ghats of India
Keskar, A., Raghavan, R., Paingankar, M.S., Kumkar, P., Katwate, U., Jadhav, S., Padhye, A. and Dahanukar, N.
Record Number:
4192
Year:
2018
Journal:
Meta Gene
Pages:
237-248
Volume:
17
Abstract:
The diversity of hillstream loaches in the northern part of the Western Ghats region of India was studied for the first time using two mitochondrial genes, cytochrome oxidase subunit I and cytochrome b. Phylogenetic analysis revealed monophyletic groups corresponding to the genera Indoreonectes, Paracanthocobitis, Nemacheilus,
Schistura and Nemachilichthys (family Nemacheilidae), and Balitora, Lepidocephalichthys and Botia (families Balitoridae, Cobitidae and Botiidae respectively). While there was little inter-population genetic divergence for genera such as Nemacheilus, Nemachilichthys, Balitora and Botia, each of which harbored a single species, there were distinct clades observed for Indoreonectes, Paracanthocobitis, Schistura and Lepidocephalichthys, which were supported through species delimitation by Poisson Tree Processes, Generalized Mixed Yule Coalescence and barcode gap analysis. We show that Indoreonectes evezardi, currently considered to be a wide-ranging species, is a ‘complex’ comprising of several genetically distinct clades indicating the presence of undescribed species. Further, we also suggest a possibility of hidden species diversity within the genera Paracanthocobitis, Schistura and Lepidocephalichthys. Based on different species delimitation methods, we suggest that there could be between 23 and 31 species of loaches belonging to eight genera and four families in the northern part of the Western Ghats of India. Our study substantially contributes to the understanding of the diversity and conservation status
of loaches in this region.
Times Cited:
1
Relevent Species:
Related Records:
Thines, G. (1969)
L'Evolution regressive des poissons cavernicoles et abyssaux
Greenwood, P. H. (1976)A new and eyeless cobitid fish (Pisces, Cypriniformes) from the Zagros Mountains, Iran
Bhargava, H.N., Jain, A.K. and Singh, D. (1984)On background related chromatic response in the cave fish Nemacheilus evazardi (Day)
Pradhan, R.K. (1984)Biochemical studies of some tissues of Nemacheilus evezardi Day from Kotumsar Cave
Pradhan, R.K. and Agarwal, S.M. (1984)Studies on Nemachilus (sic) evezardi Day from Kotumsar Cave. I Chromatophores
Zargar, V. N. and Ghosh, N. (1987)Observations on the behaviour of troglophilic microphthalmic fish Nemacheilus evezardi (Day) with relation to light
Biswas, J., Pati, A.K., Pradhan, R.K. and Kanoje, R.S. (1988)Reproductive phase-dependant adjustment in behaviour circadian rhythm characteristics: an example of constructive evolution in hypogean fish
Shriavstava, S. and Saxena, A.B. (1988)Effects of CuSO4 on the tissue respiration of the blind cave fish (Nemacheilus aureus) (Day) from Bastar (M.P.)
Pradhan, R.K., Pati, A.K. and Agarwal, S.M. (1989)Meal scheduling modulation of circadian rhythm of phototactic behaviour in cave dwelling fish
Biswas, J. (1989)Multifrequency rhythms in air gulping behaviour of cave fishes: an example of behavioural divergence
Biswas, J., Pati, A.K., Pradhan, R.K. and Kanoje, R.S. (1990)Comparative aspects of reproductive phase dependant adjustments in behaviour rythms in epigean and hypogean fish
Biswas, J. (1990)Biospeleology: The behavioural and physiologic adaptations in a cavernicole
Biswas, J., Pati, A.K. and Pradhan, R.K. (1990)Circadian and circannual rhythms in air gulping behaviour of cave fish
Skalski, A. W. (1990)Some observations on the fauna of Kotosmar Cave in India (Bastar, Madhya Pradesh)
Kottelat, M. (1990)Indochinese nemacheilines. A revision of nemacheiline loaches Pisces, Cypriniformes) of Thailand, Burma, Laos, Cambodia and southern Vietnam
Biswas, J., Pradhan, R.K. and Pati, A.K. (1990)Studies on burying behaviour in epigean and hypogean fish, Oreonectes evezardi: an example of behavioural divergence
Biswas, J. (1991)Metabolic efficiency and regulation of body weight: A comparison between life in hypogean and epigean ecosystems
Biswas, J. (1991)Annual modulation of diel motor activity rhythm of a dusk active loach Nemacheilus evezardi (Day): A correlation between daylength and circadian parameters
Biswas, J. and Pati, A.K. (1991)Influence of thyroid hormones on muscle tissue respiration in hypogean and epigean populations of loach Oreonectus evezardi
Biswas, J. (1992)Kotumsar Cave ecosystem: An interaction between geophysical, chemical and biological characteristics
Biswas, J. (1992)Influence of epigean environmental stress on a subterranean cave ecosystem: Kotumsar
Talwar, P. K. and Jhingran, A.G. (1992)Nemacheilus evezardi Day
Biswas, J. (1993)Constructive evolution: Phylogenetic age related visual sensibility in the hypogean fish on Kotumsar Cave
Pradhan, R.K. and Biswas, J. (1994)Towards regressive evolution: The periodic colour change behaviour of the troglophilic fish Nemacheilus evezardi Day
Pradhan, R.K. and Biswas, J. (1994)The influence of photoperiods on the air-gulping behaviour of the cave fish Nemacheilus evezardi (Day)
Pati, A.K. (2001)Temporal organisation in locomotor activity of the hypogean loach, Nemacheilus evezardi, and its epigean ancestor
Pati, A.K. and Agrawal, A. (2002)Circadian rhythm in phototactic behaviour in a cave loach, Nemacheilus evezardi
Pati, A.K. and Agrawal, A. (2002)Studies of the behavioural ecology and physiology of a hypogean loach, Nemacheilus evezardi, from the Kotumsar Cave India
Diwan, HD, Gupta, MP and Bandhu, J (2004)Perspective geomorphic analysis of Kotumsar karstic cave zone, Kanger Valley, Chhattisgarh (India)
Sahu, S., Das, K., Tirkey, J., Pattanaik, S., Chainy, G.B.N. and Adhikart, S.P. (2004)Isolation and characterisation of microrganisms from Kotumsar and Gupteswar caves
Sinha, S and Naik, ML (2004)Aquatic biodiversity of food chain link in Kotumsar Cave
Pati, AK, Agrawal, A and Parganiha, A (2004)Update on circadian timing system (CTS) in Nemacheilus evezardi
Pradhan, R.K., Ramteke, A., Soni, R. and Kar, A. (2004)Circadian variation in the levels of intermediary metabolites and enzyme activity in important tissues of the cave loach Nemacheilus evezardi
Biswas, J (2004)Behavioural rhythms in cavernicolous loach N. evezardi: suspected role of weak Zeitgebers
Parganiha, A., Ramteke, A., Kar, A. and Pati, A.K. (2006)Background light intensity modulates circadian rhythm of phototactic behaviour in the cave loach, Nemacheilus evezardi.
Agrawal, A. (2008)Phototactic behaviour in cave populations of Nemacheilus evezardi with special reference to light intensity and feeding schedules
Biswas, J. and Ramteke, A.K. (2008)Timed-feeding synchronizes circadian rhythm in vertical swimming activity in cave loach, Nemacheilus evezardi
Pati, A.K. (2008)Circadian rhythms in hypogean fish: With special reference to the cave loach, Nemacheilus evezardi
Biswas, J (2009)Kotumsar Cave biodiversity: A review of cavernicoles and their troglobiotic traits
Baskar, S., Swati, C. and Baskar, R. (2018)Calcite precipitation by Rhodococcus sp. isolated from Kotumsar cave, Chhattisgarh, India
Keskar, A., Raghavan, R., Paingankar, M.S., Kumkar, P., Katwate, U., Jadhav, S., Padhye, A. and Dahanukar, N. (2018)Molecular phylogeny unveils hidden diversity of hillstream loaches (Cypriniformes: Cobitoidea) in the northern Western Ghats of India
Band, S., Yadava, M.G., Lone, M.A., Shen, C.C., Sree, K. and Ramesh, R. (2018)High-resolution mid-Holocene Indian summer monsoon recorded in a stalagmite from the Kotumsar Cave, central India
Laskar, B.A., Kundu, S., Sulthana, R., Adimalla, H., Jaiswal, D., Tyagi, K., Kumar, V. and Chandra, K. (2021)Molecular investigation of cavernicoles from Kotumsar Cave in Northern Eastern Ghats, India