Supernumerary chromosomes in Nephrops norvegicus L (Crustacea, Decapoda)

被引：14

作者：

Deiana, AM ^{[1
]}

Coluccia, E ^{[1
]}

Milia, A ^{[1
]}

Salvadori, S ^{[1
]}

机构：

[1] UNIV CAGLIARI,DIPARTIMENTO BIOL SPERIMENTALE,I-09126 CAGLIARI,ITALY

来源：

HEREDITY | 1996年 / 76卷

关键词：

B chromosomes; chromosome banding; Nephrops norvegicus;

D O I：

10.1038/hdy.1996.12

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Supernumerary chromosomes have been identified in the chromosome complement of Nephrops norvegicus L. by C-banding and restriction endonuclease-induced banding. These chromosomes showed peculiar features of typical B chromosomes in terms of heterochromatin content, asynapsis and distorted segregation. The presence of these chromosomes can, at least partially, account for the numerical variability already observed in this species; 2n and n values determined by counting these chromosomes separately gave a less variable number of chromosomes in the complement. Q-banding was useful to characterize some large B chromosomes with intercalary and subtelomeric bands as well as entirely positive short arms in some small submetacentric chromosomes. Nucleolar organizer regions have been identified in four pairs of chromosomes by silver staining.

引用

页码：92 / 99

页数：8

共 16 条

[1]

[Anonymous], 1985, CAVALIER SMITH T

[2] CHEMICAL DIFFERENTIATION WITH FLUORESCENT ALKYLATING AGENTS IN VICIA FABA METAPHASE CHROMOSOMES [J].

CASPERSSON, T ;

ZECH, L ;

MODEST, J ;

FOLEY, GE ;

WAGH, U ;

SIMONSSON, E .

EXPERIMENTAL CELL RESEARCH, 1969, 58 (01) :128-+

[3] THE CHARACTERIZATION OF MURAENA-HELENA L MITOTIC CHROMOSOMES - KARYOTYPE, C-BANDING, NUCLEOLAR ORGANIZER REGIONS, AND INSITU DIGESTION WITH RESTRICTION ENDONUCLEASES [J].

CAU, A ;

SALVADORI, S ;

DEIANA, AM ;

BELLA, JL ;

MEZZANOTTE, R .

CYTOGENETICS AND CELL GENETICS, 1988, 47 (04) :223-226

[4]

Corni MG, 1989, NOVA THALASSIA, V10, P127

[5]

Doussau de Bazignan M., 1985, Cybium, V9, P57

[6]

FARMER A S, 1974, Crustaceana (Leiden), V27, P17, DOI 10.1163/156854074X00172

[7] VARIABILITY OF CHROMOSOME-NUMBER IN THE LOBSTERS, HOMARUS-AMERICANUS AND HOMARUS-GAMMARUS [J].

HUGHES, JB .

CARYOLOGIA, 1982, 35 (02) :279-289

[8]

JONES RN, 1982, B CHROMOSOMES, P19

[9]

JONES RN, 1982, B CHROMOSOMES, P40

[10]

KLINKHARDT M, 1992, 1ST INT WORKSH FISH, P35

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