Biology:Dallia

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Short description: Genus of fishes

Dallia
Dallia pectoralis (line art).jpg
Dallia pectoralis
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Esociformes
Family: Esocidae
Genus: Dallia
T. H. Bean, 1880

Dallia is a genus of mudminnows native to Russia and Alaska. Molecular data indicates the genus is more closely related to Esox and Novumbra than Umbra.[1][2] Dallia diverged from Novumbra + Esox approximately 66 million years ago.[2]

Species

Three species in this genus are recognized:[3]

Dallia admirabilis Chereshnev, 1980 (Amguema blackfish)

Dallia delicatissima Smitt, 1881 (Pilkhykay blackfish)

Dallia pectoralis T. H. Bean, 1880 (Alaska blackfish)

Mitochondrial sequence data was examined from D. pectoralis and D. admirabilis and did not indicate that speciation within the genus in Russia; however, genetic isolation within Alaska for populations of D. pectoralis could be high and associated with karyotype differences.[4][5][6][7]

References

  1. López, J. Andrés; Chen, Wei-Jen; Ortí, Guillermo (2004). "Esociform Phylogeny". Copeia 2004 (3): 449–464. doi:10.1643/cg-03-087r1. 
  2. 2.0 2.1 "Pike and salmon as sister taxa: detailed intraclade resolution and divergence time estimation of Esociformes + Salmoniformes based on whole mitochondrial genome sequences". Gene 530 (1): 57–65. November 2013. doi:10.1016/j.gene.2013.07.068. PMID 23954876. 
  3. Froese, Rainer and Pauly, Daniel, eds. (2006). Species of Dallia in FishBase. February 2006 version.
  4. "Mitochondrial phylogeography of a Beringian relict: the endemic freshwater genus of blackfish Dallia (Esociformes)". Journal of Fish Biology 84 (2): 523–38. February 2014. doi:10.1111/jfb.12314. PMID 24490938. 
  5. Campbell, Matthew A.; Sage, George K.; DeWilde, Rachel L.; López, J. Andrés; Talbot, Sandra L. (2013-12-05). "Development and characterization of 16 polymorphic microsatellite loci for the Alaska blackfish (Esociformes: Dallia pectoralis)" (in en). Conservation Genetics Resources 6 (2): 349–351. doi:10.1007/s12686-013-0091-6. ISSN 1877-7252. 
  6. "Beringian sub-refugia revealed in blackfish (Dallia): implications for understanding the effects of Pleistocene glaciations on Beringian taxa and other Arctic aquatic fauna" (in En). BMC Evolutionary Biology 15 (1): 144. July 2015. doi:10.1186/s12862-015-0413-2. PMID 26187279. 
  7. "Chromosome-banding study of the Alaska blackfish, Dallia pectoralis (Euteleostei: Esocae), with implications for karyotype evolution and relationship of esocoid fishes". Canadian Journal of Zoology 74 (1): 147–156. 1996. doi:10.1139/z96-019. 

Wikidata ☰ Q4154182 entry