submetacentric chromosome

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Related to submetacentric chromosome: telocentric chromosome, centromeric, acrocentric chromosome

sub·met·a·cen·tric chro·mo·some

a chromosome with the centromere so placed that it divides the chromosome into two arms of strikingly unequal length.

References in periodicals archive ?

stentina, with 6 metacentric and 4 submetacentric chromosome pairs, revealed a karyotypic formula very similar to that of O.

Cytogenetic characterization of the dwarf oyster Ostrea stentina (mollusca: bivalvia) and comparative karyological analysis within ostreinae

Notropis Notropis Notropis greenei rubellus tristis Number of specimens examined 3 3 5 Number of metaphases examined 152 145 91 Number of (haploid) NOR chromosomes 1 1 1 NOR chromosome phenotype* D D D *NOR chromosome phenotype (after Gold and Amemiya, 1986; Amemiya and Gold, 1988): D, NOR terminal on the short arm of a medium-sized submetacentric chromosome.

Standard and nor-stained karyotypes of three species of north American cyprinid fishes

A submetacentric chromosome with an interstitial band midway between the telomeric band and the centromeric band; there were no interstitial bands located on the long arms, although occasionally a tertiary constriction can be found on the long arms of the chromosomes.

Chromosomal polymorphism as detected by C-banding patterns in Chilean alfalfa germplasm (1). (Cell Biology & Molecular Genetics)

The ratio of the total length of metacentric chromosomes to that of the submetacentric chromosomes was calculated for both the parent species.

Karyological studies of the hybrid larvae of haliotis disversicolor supertexta female and haliotis discus discus male

The majority of about 89 species reported in the class Bivalvia, exception for Pectinidae and Teredinidae, had mostly metacentric and submetacentric chromosomes. In the present study, the chromosome number and karyotype of hard clam are similar to the most members of Veneridae, such as Ruditapes philippinarum, R.

Karyotypes of diploid and triploid Mercenaria mercenaria (Linnaeus)

corrugata suggests a deletion process of the short arms in some submetacentric chromosome pairs, originating subtelocentric pairs.

Karyotype analysis and chromosomal localization by fish of ribosomal DNA, telomeric [(TTAGGG).sub.N] and [(GATA).sub.N] repeats in Haliotis fulgens and H. corrugata (archeogastropoda: haliotidae)

(1998) observed a different karyotype on Cerdocyon thous, compared to other canids so far studied, as it presented a higher proportion of meta and submetacentric chromosomes and the highest fundamental number of the Canidae family (NF = 106).

Caracterizacao citogenetica e molecular de exemplares de Speothos venaticus

nigra has, beyond the X-autosome fusion, a second one, involving a long acrocentric autosome (the third in size among the medium-sized group), giving rise to a pair of submetacentric chromosomes that is the largest of the complement.

The chromosomes and the sex determining mechanism of Scaphura nigra (Orthoptera, Ensifera, Tettigoniidae, Phaneropterinae)

These specimens have a 2n=24 (NF=48) karyotype (Figure 1e), with 22 metacentric and two submetacentric chromosomes, and NORs, as detected by Ag-staining (Figure 1f) or FISH with the 18S rDNA probe (Figure 1g), located on the telomeric region of the long arms of the largest metacentric pair.

Comparative cytogenetic and allozyme analysis of Mugil rubrioculus and M. curema (Teleostei: mugilidae) from Venezuela/Analisis comparativo citogenetico y aloenzimatico de Mugil rubrioculus and M. curema (Teleostei: Mugilidae) de Venezuela/Analise comparativa citogenetica e aloenzimatica de mugil rubrioculus and M. curema (Teleostei: Mugilidae) de Venezuela

irradians, 5st + 11t, contained only subtelocentric and telocentric chromosomes and no metacentric or submetacentric chromosomes (Table 2).

Chromosomal rearrangement in Pectinidae revealed by rRNA loci and implications for bivalve evolution

Number of submetacentric chromosomes: with six and eight submetacentrics (0), 10 submetacentrics (1), 12 submetacentrics (2), 14 submetacentrics (3), 16 submetacentrics (4), 18 submetacentrics (5), 20 submetacentrics (6), 22 submetacentrics (7).

A phylogeny of howler monkeys (Cebidae: Alouatta) based on mitochondrial, chromosomal and morphological data

The B genome was characterized by two submetacentric chromosomes; one of which had a small satellite and five median chromosomes.