Ilyocryptus uenoi sp. nov. (Anomopoda, Cladocera, Branchiopoda) from Japan

Kotov, Alexey A.; Tanaka, Susumu

doi:10.1023/b:hydr.0000025061.92705.62

Cited by 5 publications

(6 citation statements)

References 8 publications

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“…(2006) state that ‘Japan may represent an important area for cladoceran diversity because it probably lacked permafrost during the Pleistocene and, unlike much of Beringia, represented a refugium for temperate species’. Several new endemic taxa have been found in Japan (Kotov & Tanaka, 2004; Ishida et al. , 2006) and nearby regions (Kotov et al.…”

Section: Discussionmentioning

confidence: 99%

Revision of the genusBosminaBaird, 1845 (Cladocera: Bosminidae), based on evidence from male morphological characters and molecular phylogenies

Kotov

Ishida

Taylor

2009

Zoological Journal of the Linnean Society

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The systematics of the freshwater crustacean genus Bosmina Baird, 1845 (Anomopoda: Bosminidae) is notoriously confused. Part of the problem stems from a lack of characters in this cyclic parthenogen. We aimed to remedy this problem by scoring male morphological characters (previously described in just a few species), and by estimating molecular phylogenies. More specifically, the goals of this investigation are: (1) a detailed description of the adult males of Bosmina species; (2) a study of the changes of male characters during the postembryonic development in different subgenera; (3) an analysis of the taxonomical value of male characters; and (4) the estimation of a phylogenetic tree based on male characters and genetic characters from mitochondrial 16S rDNA and nuclear rDNA-internal transcribed spacers (ITS) gene sequences. We redescribed males of ten species: Bosmina (Bosmina) longirostris (O. (Eubosmina) tanakai sp. nov. In addition, we fully redescribe B. (Lunobosmina) oriens and describe B. (E.) tanakai sp. nov. (an endemic Japanese lineage of the subgenus Eubosmina). A cladistic analysis of 24 morphological characters of males led to a single most parsimonious tree that agreed with phylogenies based on 16S mtDNA and nuclear genes. Both the male morphological and the genetic analyses indicated that the Japanese lineage containing B. (E.) tanakai sp. nov. is divergent and unique. Thus, these approaches resolved relationships that were unresolved with female morphology. Divergent life history evolution appears to have rendered male morphology more informative than female morphology for systematic biology. We provide a key for Bosmina species with adequately described males.

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Section: Discussionmentioning

confidence: 99%

Revision of the genusBosminaBaird, 1845 (Cladocera: Bosminidae), based on evidence from male morphological characters and molecular phylogenies

Kotov

Ishida

Taylor

2009

Zoological Journal of the Linnean Society

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“…Other endemic Japanese cladoceran species have recently been described (e.g. Kotov & Tanaka, 2004) and there are likely several more undescribed Japanese species.…”

Section: Discussionmentioning

confidence: 99%

A new divergent lineage of Daphnia (Cladocera: Anomopoda) and its morphological and genetical differentiation from Daphnia curvirostris Eylmann, 1887

Ishida

Kotov

Taylor

2006

Zoological Journal of the Linnean Society

466

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The systematic biology of the subgenus Daphnia s . s . remains confused. Prior attempts at resolution used chiefly postabdominal claw morphology, chromosome numbers and rRNA gene sequences as characters for higher-level relations. Still, several taxa, such as Daphnia curvirostris Eylmann, 1878, have unclear affiliations. We addressed the position of D. curvirostris in this genus by estimating phylogenetic trees from a rapidly evolving protein coding gene (ND2), conducting broad geographical comparisons and carrying out detailed morphological comparisons. The Japanese ' curvirostris' was found to be a new divergent lineage in the subgenus Daphnia , and to possess distinctive morphological characteristics from D. curvirostris . We described this new species as Daphnia tanakai sp. nov. , and redescribed D. curvirostris . The polymorphic postabdominal claw morphology and the distinctive chromosome number of D. tanakai sp. nov. provided evidence for rapid evolution of these traits. Our new morphological, chromosomal and genetic assessment of Daphnia weakened the argument for division of the subgenus Daphnia ( Daphnia ) O. F. Müller, 1785 sensu Johnson, 1952, into two further subgenera.

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“…However, unlike in the common I. sordidus (Liévin, 1848), the antennule in our collected individuals was 8-10 times longer than it was wide, which is characteristic of I. spinifer. A worldwide study of morphology confirmed that this species is Neotropical (Kotov & Dumont, 2000). Consequently, this species has been recorded in several countries of Central and South America and the Caribbean (Collado et al, 1984;Kotov & Dumont, 2000;Elías-Gutiérrez et al, 2008;Elmoor Loureiro, 1997).…”

Section: Resultsmentioning

confidence: 82%

Freshwater microcrustaceans of Hispaniola: new records and potential as biological control agents

Olmo¹,

Rueda²,

Rodríguez-Sosa³

et al. 2023

Limnetica

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Some species of freshwater microcrustaceans have been widely used for biological control of mosquito larval populations. These zooplankton communities play an important role against some species of mosquitoes by exerting competitive pressure or predation. However, zooplankters are scarcely studied in many Caribbean islands such as Hispaniola. The goal of this study was to improve the knowledge of these microcrustaceans in order to better understand the biodiversity and ecology of this Antillean Island. Samples of zooplankton were taken from 28 ponds in the northern Dominican Republic during 2020. The total richness of microcrustaceans was 25 species, comprising 17 copepods and 8 cladocerans. Most of the collected species were previously described for the island, and some of them are registered as potential biological controllers of mosquito larvae populations. Five genera (including 6 species) of microcrustaceans that inhabit the ponds are recorded for the first time for Hispaniola: Simocephalus Schoedler, 1858; Pleuroxus Baird, 1853; Ilyocryptus G.O. Sars, 1861; Apocyclops Lindberg, 1942; and Diacyclops Kiefer, 1927. Here, we discuss these new findings in relation to the competitive and/or predatory potential of these species against mosquito larvae. The present study improves the knowledge of biodiversity in ponds in the Dominican Republic.

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Ilyocryptus uenoi sp. nov. (Anomopoda, Cladocera, Branchiopoda) from Japan

Cited by 5 publications

References 8 publications

Revision of the genusBosminaBaird, 1845 (Cladocera: Bosminidae), based on evidence from male morphological characters and molecular phylogenies

Revision of the genusBosminaBaird, 1845 (Cladocera: Bosminidae), based on evidence from male morphological characters and molecular phylogenies

A new divergent lineage of Daphnia (Cladocera: Anomopoda) and its morphological and genetical differentiation from Daphnia curvirostris Eylmann, 1887

Freshwater microcrustaceans of Hispaniola: new records and potential as biological control agents

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