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Establishment and characterization of fin cell lines from diploid, triploid, and tetraploid oriental weatherfish (Misgurnus anguillicaudatus).

Abstract：

:Continuous fin cell lines from diploid, triploid, and tetraploid oriental weatherfish, Misgurnus anguillicaudatus, were established and characterized. The cell lines, designated DIMF, TRMF, and TEMF, respectively, were subcultured more than 80 times since initiation in October 2012 and were preserved at the China Center for Type Culture Collection as sample numbers C2013109, C2013110, C2013111, respectively. The cell lines consist predominantly of fibroblast-like cells. At the 50th passage, the population doubling times were 48.43 h (DIMF), 36.01 h (TRMF), and 41.45 h (TEMF). Cell survival rate of these three kinds of cells was 80.88 ± 1.38, 84.48 ± 1.13, and 81.57 ± 1.28 %, respectively, when recovered after storage in liquid nitrogen for 60 days at the 40th passage. The chromosome numbers measured from 100 metaphase plates at the 50th passage were 2n = 50 (68 %), 3n = 75 (59 %), and 4n = 100 (54 %) for DIMF, TRMF, and TEMF cells, respectively. At the 60th passage, the chromosome numbers for DIMF and TRMF cells were still 50 (52 %) and 75 (70 %), but the chromosome number for TEMF cells ranged from 88 to 100; a chromosome number of 96 accounted for 26 % of the cells, and the karyotype analysis showed 4n = 96, 16 m + 8sm + 72t, NF = 120; thus, compared with cells at the 50th passage, a group of metacentric chromosomes was missing. Microsatellite marker analysis was conducted using DIMF, TRMF, and TEMF cells and muscle tissue of oriental weatherfish, which confirmed that the three cell lines established in this study were from oriental weatherfish. The cell lines were exposed to two fish viruses to determine their susceptibility to infection; they were susceptible to spring viremia of carp virus but not to piscine nodavirus. Establishment of fin cell lines from different ploidy oriental weatherfish increases the existing number of fish cell lines available for research, and it provides a model for investigating the mechanisms of growth and genetics in polyploid fish.

journal_name

Fish Physiol Biochem

journal_title

Fish physiology and biochemistry

authors

Li X,Ma C,Qin YJ,Li YJ,Wu D,Bai LW,Pei AJ

doi

10.1007/s10695-015-0036-y

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

661-72

issue

eissn

0920-1742

issn

1573-5168

journal_volume

pub_type

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Establishment and characterization of fin cell lines from diploid, triploid, and tetraploid oriental weatherfish (Misgurnus anguillicaudatus).