Fish Karyome version 2.1: a chromosome database of fishes and other aquatic organisms

Abstract

A voluminous information is available on karyological studies of fishes; however, limited efforts were made for compilation and curation of the available karyological data in a digital form. ‘Fish Karyome’ database was the preliminary attempt to compile and digitize the available karyological information on finfishes belonging to the Indian subcontinent. But the database had limitations since it covered data only on Indian finfishes with limited search options. Perceiving the feedbacks from the users and its utility in fish cytogenetic studies, the Fish Karyome database was upgraded by applying Linux, Apache, MySQL and PHP (pre hypertext processor) (LAMP) technologies. In the present version, the scope of the system was increased by compiling and curating the available chromosomal information over the globe on fishes and other aquatic organisms, such as echinoderms, molluscs and arthropods, especially of aquaculture importance. Thus, Fish Karyome version 2.1 presently covers 866 chromosomal records for 726 species supported with 253 published articles and the information is being updated regularly. The database provides information on chromosome number and morphology, sex chromosomes, chromosome banding, molecular cytogenetic markers, etc. supported by fish and karyotype images through interactive tools. It also enables the users to browse and view chromosomal information based on habitat, family, conservation status and chromosome number. The system also displays chromosome number in model organisms, protocol for chromosome preparation and allied techniques and glossary of cytogenetic terms. A data submission facility has also been provided through data submission panel. The database can serve as a unique and useful resource for cytogenetic characterization, sex determination, chromosomal mapping, cytotaxonomy, karyo-evolution and systematics of fishes.Database URL: http://mail.nbfgr.res.in/Fish_Karyome

H2S Donor NaHS Changes the Production of Endogenous H2S and NO in D‐Galactose‐Induced Accelerated Ageing

“…Since NO is an important endothelial-derived vasodilator and cardioprotector, low NO levels may contribute to D-gal-induced tissue damages. The two gaseous signalling molecules NO and H 2 S are indispensable for diverse cellular and systemic functions [ 14 , 35 , 36 ]. Recent studies revealed that these two gaseous molecules may have redundant or overlapping physiological functions as well as pathophysiological roles by virtue of their actions on similar molecular targets [ 37 ].…”

The First Highly Contiguous Genome Assembly of Pikeperch (Sander lucioperca), an Emerging Aquaculture Species in Europe

“…The size of the pikeperch haploid genome was estimated to be 1.14 pg (i.e., 1114 Mb) utilizing cytometric methods [6]. A diploid number of 48 (2n = 48) chromosomes was reported for this species [7,8]. Previous studies have also reported a XY/XX sex chromosomes system in the Percidae fish family [9].…”

HRGFish: A database of hypoxia responsive genes in fishes

“…The gene information of the species was enriched with general information (taxonomy, habitat, occurrences, distribution) collected from FishBase 34 and conservation status collected from IUCN 35 . The modus operandi applied in the Fish Karyome 36 was used for integration of genomic data with other fisheries information. Figure 1 presents the complete architecture of the HRGFish database.…”