A note on the synonymy of some Neodiaptomus spp. (Copepoda, Calanoida) of the Indian subcontinent

Reddy, Y. Ranga; Reddy, P. Venkata Subba

doi:10.1007/bf00006505

Cited by 3 publications

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“…Neodiaptomus is represented by four valid species namely N. schmackeri (Poppe and Richard, 1892), N. physalipus (Kiefer, 1935), N. lindbergi (Brehm 1951), N. intermedius (Flobner, 1984) in Indian subcontinent. Neodiaptomus meggiti is recorded in Mayanmar and Malaysia, Fernando 1978 and while never been reported in Indian subcontinent except of single report from Andaman (Reddy, 2000), whereas N. schmackeri is reported in Thailand (Sanoamuang & Athibai, 2002), mainland India (Reddy and Reddy, 1992) and adjoining countries to Andaman but not reported from Andaman.…”

Section: Discussionmentioning

confidence: 87%

“…The observed inter population distances (maximum divergence of 7.7 %) between N. schmackeri and N. meggiti suggest that both the species are separate and share a different evolutionary lineage. The N. schmackeri is distributed throughout the Indo pacific region (Reddy and Reddy 1992;Sanoamuang & Athibai, 2002) whereas the distribution of N. meggitti is limited up to Andaman and Nicobar Islands and this species is not reported from mainland India. The occurrence of N. meggitti at Andaman Island might be due to its closeness of to Thailand and Malaysian land than the large oceanic barrier in between Andaman Island and mainland India.…”

Section: Discussionmentioning

confidence: 96%

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BEGUM¹,

DHARANI²,

ALTAFF³

2018

GenAqua

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Calanoid copepods belonging to the family Diaptomidae occur commonly and abundantly in different types of freshwater environment. Based on morphological taxonomic key characters 48 diaptomid species belonging to 13 genera were reported from India. Taxonomic discrimination of many species of these genera is difficult due to their high morphological similarities and minute differences in key characters. In the present study two species of the genus, Neodiaptomus, N. meggiti and N. schmackeri from Andaman Islands were examined based on morphological and molecular characters which showed low variation in morphology and differences in their distributions. The morphological taxonomy of Copepoda with genetic analysis has shown complementing values in understanding the genetic variation and phylogeny of the contemporary populations. In this study, a molecular phylogenetic analysis of N. meggiti and N. schmackeri is performed on the basis of mitochondrial Cytochrome c oxidase subunit I (COI) gene. The mtDNA COI sequence of N. meggiti and N. schmackeri is 650 bp long. The mtDNA COI 1 gene sequence data of N. meggiti exhibits a remarkable constancy throughout its distributional area ranging from North to south Andaman. Similarity of N. meggiti with other genera of the family varies from 67.6 to 75.5% while of N. schmackeri varies from 65.5 to 72.6% on the basis of COI gene sequences. While N. meggiti and N. schmackeri share a similarity of 92.3%, high COI gene sequence similarity among each other supports the morphological based data that they belong to the same genus. The phylogenetic relationship elucidated using three different tree-making algorithms, the neighbour joining, minimum evolution and maximum parsimony showed that five plankton specimens under study form two clusters and constituted a deeply rooted, evolutionarily distinct group, separated from the other related genera used in the analysis. The phylogenetic relationship of the two diaptomid copepod N. meggiti and N. schmackeri of Andaman is remarkably accurate when the Neighbor joining phylogenetic tree and as well as maximum parsimony phylogenetic tree are considered.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 96%

Untitled

BEGUM¹,

DHARANI²,

ALTAFF³

2018

GenAqua

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“…It is a Palaearctic species, reported also in the United States (including Alaska) by Dussart and Defaye (2002), and one of the most widely N o n -c o m m e r c i a l u s e o n l y Russia (Dussart and Defaye, 2002 and reference therein), Japan (Semura et al, 1986), and Taiwan (Young and Shih, 2011). N. schmackeri is the type species of the genus Neodiaptomus (Ranga Reddy and Subba Reddy, 1992;Ranga Reddy 1994;Dussart and Defaye, 2002).…”

Section: Introductionmentioning

confidence: 89%

First record of the Asian diaptomid Neodiaptomus schmackeri (Poppe & Richard, 1892) (Crustacea: Copepoda: Calanoida) in Europe

2014

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Neodiaptomus prateek n. sp., a new freshwater copepod from Assam, India, with critical review of generic assignment of Neodiaptomus spp. and a note on diaptomid species richness (Calanoida: Diaptomidae)

Reddy

2013

Journal of Crustacean Biology

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A B S T R A C TNeodiaptomus prateek n. sp. is described based on a plankton sample collected from Deepor Beel, a floodplain lake in the north-eastern, Indian state of Assam, which falls within the key biodiversity area of the Indo-Burma Hotspot. The new species fulfils all the principal criteria of the genus Neodiaptomus Kiefer, 1932, as revised by Kiefer (1939). It has, however, a spectacular autapomorphic feature, which is perhaps unparalleled in Diaptomidae as a whole -a massive coxal plate ending in a thumb-like spinulose structure on the caudal surface of the male left P5. The new taxon also has two homoplastic characters that are hitherto unknown within the genus: the female fourth pediger has a prominent mid-dorsal process, and the third endopodal segment of P2-P4 has six instead of seven setae, the proximal outer seta being absent. The affinities of the new species with its congeners are discussed. Furthermore, the generic assignment of all the 13 species of Neodiaptomus listed in the latest World Copepoda database (Walter, 2012) is critically reviewed. Of these, five species are recognised as valid, six are relegated to species inquirendae, and one each is a nomen dubium and a synonym. Two lineage groups are recognised within the genus, one belonging to Southeast Asia and the other mostly confined to India. Surprisingly, the new species was accompanied by a record number of seven other diaptomid species in the same sample; the probable biogeographic and ecological implications of this high species richness are briefly discussed.

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A note on the synonymy of some Neodiaptomus spp. (Copepoda, Calanoida) of the Indian subcontinent

Cited by 3 publications

References 5 publications

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First record of the Asian diaptomid Neodiaptomus schmackeri (Poppe & Richard, 1892) (Crustacea: Copepoda: Calanoida) in Europe

Neodiaptomus prateek n. sp., a new freshwater copepod from Assam, India, with critical review of generic assignment of Neodiaptomus spp. and a note on diaptomid species richness (Calanoida: Diaptomidae)

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