First description of karyotypes and localization of ribosomal genes in two sand lances (Uranoscopiformes: Ammodytidae); small sand-eel (Ammodytes tobianus Linnaeus, 1758) and great sand-eel (Hyperoplus lanceolatus Le Sauvage, 1824)

Konrad Ocalewicz , Lech Kirtiklis , Katarzyna Mojsa , Mariusz Sapota , Maciej Kwiatkowski

Abstract

The sand lances (also known as sand-eels) are small fish belonging to family Ammodytidae that consists of 31 species belonging to 7 genera. Despite world-wide distribution, key role in the ecosystems and significant commercial importance, sand lances have rarely been objects of the cytogenetic studies. The chromosomes of small sand-eel (Ammodytes tobianus) and great sand-eel (Hyperoplus lanceolatus) were analysed for this study. Karyotypes of both species were composed of 48 acrocentric chromosomes (FN = 48). Chromosomes of the great sand-eel were stained equally with DAPI. However, small sand-eels exhibited one pair of chromosomes with DAPI-negative blocks of chromatin located on the q-arm in the vicinity of the centromeric regions. Major and minor rDNA sites were observed on the separate single chromosome pairs in both species. These results provide new data regarding the genetics of Ammodytidae, showing an ancestral teleostean type of karyotype, based on the number of chromosomes (48), their morphology (FN = 48) and the distribution of rDNA sequences.
Author Konrad Ocalewicz (FOG / IO / DMBE)
Konrad Ocalewicz,,
- Department of Marine Biology and Ecology
, Lech Kirtiklis
Lech Kirtiklis,,
-
, Katarzyna Mojsa (FOG / IO)
Katarzyna Mojsa,,
- Institute of Oceanography
, Mariusz Sapota (FOG / IO / DMBE)
Mariusz Sapota,,
- Department of Marine Biology and Ecology
, Maciej Kwiatkowski (FOG / IO / HMS)
Maciej Kwiatkowski,,
- Hel Marine Station
Journal seriesMarine Biology Research, ISSN 1745-1000, e-ISSN 1745-1019, (N/A 40 pkt)
Issue year2019
Vol15
No8-9
Pages523-529
Publication size in sheets0.5
Keywords in EnglishChromosomes, FISH, marine fish, rDNA sequences, Teleostei
ASJC Classification1104 Aquatic Science; 1105 Ecology, Evolution, Behavior and Systematics; 1910 Oceanography
DOIDOI:10.1080/17451000.2019.1662447
URL https://doi.org/10.1080/17451000.2019.1662447
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 24-02-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.488; WoS Impact Factor: 2018 = 1.291 (2) - 2018=1.42 (5)
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