Description of three microsatellite loci of the Baikal omul Coregonus migratorius (Georgi)

Gaikalov, I. V.; Ilyina, O.; Kirilchik, S. V.; Суханова, Л. В.

doi:10.1134/s1022795408030204

Cited by 3 publications

(2 citation statements)

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“…Phylogenetic analysis using a maximum likelihood tree among 42 complete mitogenomes of the Salmonidae family and one Danio rerio sequence showed 99% sequence similarity to the S. trutta genome [ 269 ]. Nevertheless, Baikal omul, C. migratorius , possesses morphological characteristics that suggest it is whitefish, although it is more strongly linked to whitefish based on molecular similarities [ 331 , 332 ]. S. trutta fario L. has been phylogenetically placed with other S. trutta species, with obvious divergence [ 330 ].…”

Section: Phylogenetic Characteristics Of Salmonmentioning

confidence: 99%

Salmonidae Genome: Features, Evolutionary and Phylogenetic Characteristics

Dysin

Shcherbakov

Николаева

et al. 2022

Genes

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The salmon family is one of the most iconic and economically important fish families, primarily possessing meat of excellent taste as well as irreplaceable nutritional and biological value. One of the most common and, therefore, highly significant members of this family, the Atlantic salmon (Salmo salar L.), was not without reason one of the first fish species for which a high-quality reference genome assembly was produced and published. Genomic advancements are becoming increasingly essential in both the genetic enhancement of farmed salmon and the conservation of wild salmon stocks. The salmon genome has also played a significant role in influencing our comprehension of the evolutionary and functional ramifications of the ancestral whole-genome duplication event shared by all Salmonidae species. Here we provide an overview of the current state of research on the genomics and phylogeny of the various most studied subfamilies, genera, and individual salmonid species, focusing on those studies that aim to advance our understanding of salmonid ecology, physiology, and evolution, particularly for the purpose of improving aquaculture production. This review should make potential researchers pay attention to the current state of research on the salmonid genome, which should potentially attract interest in this important problem, and hence the application of new technologies (such as genome editing) in uncovering the genetic and evolutionary features of salmoniforms that underlie functional variation in traits of commercial and scientific importance.

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Section: Phylogenetic Characteristics Of Salmonmentioning

confidence: 99%

Salmonidae Genome: Features, Evolutionary and Phylogenetic Characteristics

Dysin

Shcherbakov

Николаева

et al. 2022

Genes

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“…Later, because of some well-marked features, the Posolsk omul population was allocated from the Selenga race as a separate (fourth) population [7]. The term "race" used in the 1930-1950s corresponds to the concept of a "population" in modern terminology (e.g., [8,9]). The population structure of Baikal omul is clearly correlated with its breeding areas [5].…”

Section: Introductionmentioning

confidence: 99%

Unexpected Discovery of an Ectoparasitic Invasion First Detected in the Baikal Coregonid Fish Population

Kaygorodova

Matveenko

Dzyuba

2022

Fishes

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The omul, Coregonus migratorius (Georgi, 1775), an endemic fish of Lake Baikal, is the main commercial species of essential economic importance for the extensive region of Eastern Siberia. Despite the continuous 250-year study of Baikal omul and intensive commercial fishing, neither fishers nor biologists have ever mentioned or found external annelid parasites in numerous omul catches. Targeted parasitological studies have also never detected these ectoparasites on the body of this fish. In this study, we present the first reliable information on the existence of specific annelid parasites infecting the pelagic population of Baikal omul and report a 4% infestation of spawners in the Selenga River, the largest tributary of Lake Baikal. We also obtained the main morphometric parameters of the infected fishes, the morphology of the unknown parasite and its feeding strategy. DNA-based analysis was applied to ascertain the taxonomy of the leeches and revealed no closely related taxa existing in international genetic databases (e.g., GenBank) to date. A maximum genetic identity of 89–91% was detected with European Caspiobdella fadejewi. The genetic distances in 9–11% of the substitutions from the closest relatives were very high for a reliable molecular identification of a taxon. The Selenga omul leech may represent a potentially new species and genus.

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