Cnidarian fauna of relict Lakes Baikal, Biwa and Khubsugul

Anokhin, Boris A.; Kuznetsova, Valentina G.

doi:10.1007/s10750-006-0310-1

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…This species has also been reported from Listvennichniy Bay, the littoral zone near Bolshoy Ushkaniy Island, Bolshie Koty Bay, and in small lakes along the Bolshie Koty River. Hydra oligactis occurs in the same areas and was also reported from Dagarskaya Bay, Mukhor Bay (Stepanyants et al 2006), and Barguzinskiy Bay (Peretolchina et al 2018a).…”

Section: Discussionsupporting

confidence: 71%

“…Baikal region: Port Baikal, Ulanovo, Listvennichny Bay, Bolshie Koty, Varnachka, Sobolev Cape, Turali Cape, Elokhin Cape, Mukhor Bay, Posolsky Sor Dagarskaya Bay, littoral zone near Bolshoy Ushkaniy Island, small lakes along the Bolshie Koty River, and Lake Kuzmikhinskoye (Artificial reservoir near the Angara River). This species is also widespread and common on the entire European continent, including the British Isles and Iceland as well as Russia and North America (Hyman 1930;Holstein 1995;Stepanyants et al 2006). Schuchert (2010).…”

Section: Discussionmentioning

confidence: 99%

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The diversity of the Baikal lineage of Hydra oligactis Pallas, 1766: molecular and morphological evidence

Peretolchina

Ханаев

Enushchenko

et al. 2020

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In this paper, molecular analyses of Baikal hydras from the ‘oligactis group’, based on COI and ITS1–5.8S–ITS2, and morphological analysis of their holotrichous isorhizas, were performed. Low genetic diversity and shared haplotypes were found between Hydra oligactis Pallas, 1766 and Hydra baikalensis Swarczewsky, 1923 specimens, which is evidence of the mixing of these lineages. Genetic distances among all Baikal hydras (0.006) were less than the interspecific distances of other hydras. The size of hydras and proportions of their holotrichous isorhizas varied depending on microhabitat and environmental conditions. Our combined molecular and morphological approach proves that H. baikalensis is synonymous with H. oligactis

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Section: Discussionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 99%

The diversity of the Baikal lineage of Hydra oligactis Pallas, 1766: molecular and morphological evidence

Peretolchina

Ханаев

Enushchenko

et al. 2020

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“…Chromosomes are known to be the carriers of genetic material, and chromosome changes provide the basis of speciation (White 1973). As many as 8 species from all three above-mentioned hydra genera have been karyotyped so far (Xinbai et al 1987, Ovanesyan and Kuznetsova 1995, Anokhin et al 1998, 2010, Anokhin and Kuznetsova 1999, Anokhin 2002, 2004, Anokhin and Nokkala 2004, Zacharias et al 2004, Stepanjants et al 2006, Traut et al 2007). These species were mainly studied using conventional chromosome staining techniques, including C-banding.…”

Section: Introductionmentioning

confidence: 99%

FISH-based karyotyping of Pelmatohydra oligactis (Pallas, 1766), Hydra oxycnida Schulze, 1914, and H. magnipapillata Itô, 1947 (Cnidaria, Hydrozoa)

Anokhin¹,

Kuznetsova²

2018

CCG

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An account is given of the karyotypes of Hydramagnipapillata Itô, 1947, H.oxycnida Schulze, 1914, and Pelmatohydraoligactis (Pallas, 1766) (Cnidaria, Hydrozoa, Hydridae). A number of different techniques were used: conventional karyotype characterization by standard staining, DAPI-banding and C-banding was complemented by the physical mapping of the ribosomal RNA (18S rDNA probe) and H3 histone genes, and the telomeric (TTAGGG)n sequence by fluorescence in situ hybridization (FISH). We found that the species studied had 2n = 30; constitutive heterochromatin was present in the centromeric regions of the chromosomes; the “vertebrate” telomeric (TTAGGG)n motif was located on both ends of each chromosome and no interstitial sites were detected; 18S rDNA was mapped on the largest chromosome pair in H.magnipapillata and on one of the largest chromosome pairs in H.oxycnida and P.oligactis; in H.magnipapillata, the major rRNA and H3 histone multigene families were located on the largest pair of chromosomes, on their long arms and in the centromeric areas respectively. This is the first chromosomal mapping of H3 in hydras.

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“…Y por ello se utilizan, junto a un amplio grupo de invertebrados y peces, para establecer las Directrices de Calidad Ambiental para las aguas epicontinentales (CCME, 2010;USEPA, 2013). Asimismo el efecto de la exposición a radiaciones ionizantes que puede favorecer la formación de pies ectópicos en la base de las hidras ha sido estudiado para poder comprender los procesos de regeneración tisular de estas especies (Ghaskadbi et al, 2005;Stepanjants et al, 2006).…”

Section: Introductionunclassified

Observaciones ecológicas, corológicas y taxonómicas de hídridos dulceacuícolas (Cnidaria, Hydrozoa: Hydridae) en la Cuenca del Duero

2018

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Se describe la presencia de cuatro taxones de hidras de agua dulce (Cnidaria, Hydrozoa: Hydridae) en zonas someras epicontinentales de la cuenca del Duero (NO de España). En la subcuenca del Tera se encontraron individuos aislados sobre macrófitos sumergidos de tres taxones: Hydra vulgaris Pallas, 1766, Hydra (Pelmatohydra) oligactis Pallas, 1766 e Hydra (Chlorohydra) viridissima Pallas, 1766, y además en el Carrión grupos coloniales sobre bloques de cuarcita de la forma H. vulgaris var. aurantiaca Ehrenberg, 1838. En todos los casos se corresponde con ecosistemas de media montaña de aguas frías, transparentes y oligotróficas, de pH ligeramente ácido y con escasa mineralización. Todas las especies fueron localizadas en simpatría estricta, aunque en el lago de Sanabria se pudo citar tres taxones en diferentes hábitats. Se documenta la predación en cautividad de H. oligactis sobre gusanos oligoquetos y los periodos de formación de pólipos por gemación.

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Cnidarian fauna of relict Lakes Baikal, Biwa and Khubsugul

Abstract: In relict Lakes Baikal, Biwa and Khubsugul three orders: Hydrida, Athecata and Limnomedusa (

Cited by 9 publications

References 3 publications

The diversity of the Baikal lineage of Hydra oligactis Pallas, 1766: molecular and morphological evidence

The diversity of the Baikal lineage of Hydra oligactis Pallas, 1766: molecular and morphological evidence

FISH-based karyotyping of Pelmatohydra oligactis (Pallas, 1766), Hydra oxycnida Schulze, 1914, and H. magnipapillata Itô, 1947 (Cnidaria, Hydrozoa)

Observaciones ecológicas, corológicas y taxonómicas de hídridos dulceacuícolas (Cnidaria, Hydrozoa: Hydridae) en la Cuenca del Duero

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