Molecular Phylogeny and Evolutionary Relationships Among Mosquitoes (Diptera: Culicidae) from the Northeastern United States Based on Small Subunit Ribosomal DNA (18S rDNA) Sequences

AbstractThe phylogeny of the Micarea prasina group was investigated using mitochondrial small subunit ribosomal DNA sequences from 14 taxa representing this group, four other members of the genus Micarea, and Psilolechia lucida as an outgroup. A total of 31 new mtSSU rDNA sequences were generated, including 10 from the M. micrococca complex. Bayesian, maximum parsimony (MP) and maximum likelihood (ML) methods were used to analyse the data. The results show that M. micrococca is not monophyletic and forms three strongly supported lineages: 1) M. micrococca s. str., 2) M. byssacea (Th. Fr.) Czarnota, Guzow-Krzemińska & Coppins comb. nov., and 3) a putative taxon that requires further studies. Micarea viridileprosa is a sister species to M. micrococca s. str. and the recently described M. nowakii is a sister species to M. prasina s. str. The placement of M. tomentosa within the M. prasina group is confirmed. Micarea hedlundii appears to be more closely related to the M. micrococca complex than M. prasina s. str. Descriptions, illustrations, taxonomic remarks, distribution and habitat data for M. micrococca s. str. and M. byssacea are provided. A lectotype for Biatora byssacea Hampe non Zwackh and a neotype for Catillaria prasina β [var.] byssacea are selected.

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Molecular phylogeny of Scaphopoda (Mollusca) inferred from 18S rDNA sequences: support for a Scaphopoda-Cephalopoda clade

Zoologica Scripta ◽

10.1046/j.1463-6409.2003.00121.x ◽

2003 ◽

Vol 32 (4) ◽

pp. 343-356 ◽

Cited By ~ 33

Author(s):

Gerhard Steiner ◽

Hermann Dreyer

Keyword(s):

Molecular Phylogeny ◽

18S Rdna ◽

Rdna Sequences ◽

18S Rdna Sequences

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Molecular Phylogeny of Poecilostome Copepods Based on the 18S rDNA Sequences

Korean Journal of Biological Sciences ◽

10.1080/12265071.2000.9647553 ◽

2000 ◽

Vol 4 (3) ◽

pp. 257-261 ◽

Cited By ~ 11

Author(s):

Jihee Kim ◽

Won Kim

Keyword(s):

Molecular Phylogeny ◽

18S Rdna ◽

Rdna Sequences ◽

18S Rdna Sequences

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Myxobolus jialingensis n. sp. (Myxozoa: Myxobolidae) infecting urinary bladder and hepatopancreas of yellowhead catfish Tachysurus fulvidraco from China

Zootaxa ◽

10.11646/zootaxa.4819.1.10 ◽

2020 ◽

Vol 4819 (1) ◽

pp. 179-186

Author(s):

LEI GAO ◽

JING ZHANG ◽

CHENGZHONG YANG ◽

YUANJUN ZHAO

Keyword(s):

Urinary Bladder ◽

18S Rdna ◽

Polar Capsule ◽

Small Subunit ◽

Rdna Sequences ◽

Multiple Origins ◽

Close Phylogenetic Relationship ◽

18S Rdna Sequences ◽

Tachysurus Fulvidraco ◽

Myxosporean Species

In the present study, we described a novel myxosporean species, Myxobolus jialingensis n. sp. (Myxozoa: Myxobolidae), which infected the urinary bladder and hepatopancreas of yellowhead catfish Tachysurus fulvidraco in China. The mature spores of M. jialingensis n. sp. were pyriform with the length of 15.8 ± 0.7 (15.4–17.0) μm and width of 8.0 ± 0.3 (7.8–8.9) μm. Two pyriform polar capsules were slightly unequal in size: the larger polar capsule was 7.4 ± 0.3 (6.7–8.0) μm in length and 3.1 ± 0.2 (2.8–3.6) μm in width; and the smaller polar capsule measured 7.3 ± 0.3 (6.6–8.1) μm in length and 3.3 ± 0.2 (2.9–3.6) μm in width. The polar capsules were directed toward the apex of the spore, packing seven to eight spirals of the polar filaments. The small subunit ribosomal RNA gene (18S rDNA) sequence of M. jialingensis n. sp. was unique among all myxozoans, and the highest similarity was 96.1% with M. voremkhai. Phylogenetic analysis based on 18S rDNA sequences revealed that myxosporeans infecting the close host affinity (belonging to the same order) had close phylogenetic relationship and, some myxosporeans infecting the same host order might have multiple origins.

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