C-Banded Karyotype and Cytotaxonomy of Mertensiella caucasica (WAGA, 1876) (Caudata: Salamandridae)

AbstractChromosome number, karyotype and chromosomal banding pattern of Mertensiella caucasica were studied in differentially stained mitotic preparations. The main feature of the C-banded appearance concerns the centromere regions, which are heavily stained by the Giemsa and are outlined by proximal C-bands. This morpho-structural character seems to be peculiar of the genome of M. caucasica, when compared with the C-banding pattern shown by the chromosomes of Salamandra, considered the most closely related form. Therefore, a preliminary cytotaxonomic survey seems to support the opinion that the Caucasian salamander can be referred to a well defined genus Mertensiella rather than a subgenus of Salamandra.

Download Full-text

C-banding Pattern and Nucleolar Organizer Regions of Amphioxus Branchiostoma belcheri tsingtauense Tchang et Koo, 1936

Genetica ◽

10.1023/b:gene.0000019939.38428.e5 ◽

2004 ◽

Vol 121 (1) ◽

pp. 101-105 ◽

Cited By ~ 4

Author(s):

Shicui Zhang ◽

Changliu Wang ◽

Jiansong Chu

Keyword(s):

Banding Pattern ◽

Nucleolar Organizer ◽

Nucleolar Organizer Regions ◽

C Banding ◽

Branchiostoma Belcheri

Download Full-text

New C-banding pattern for chromosome identification in cucumber (Cucumis sativusL.)

Plant Breeding ◽

10.1111/j.1439-0523.1998.tb01452.x ◽

1998 ◽

Vol 117 (1) ◽

pp. 77-82 ◽

Cited By ~ 16

Author(s):

Y. Hoshi ◽

W. Pląder ◽

S. Malepszy

Keyword(s):

Banding Pattern ◽

Chromosome Identification ◽

C Banding

Download Full-text

C-Banding Pattern and Satellite DNA Localization on the Chromosomes ofOryzomys Flavescens(Rodentia, Cricetidae)

Caryologia ◽

10.1080/00087114.1988.10797872 ◽

1988 ◽

Vol 41 (3-4) ◽

pp. 323-328 ◽

Cited By ~ 3

Author(s):

L. Vidal Rioja ◽

T.G. de Fronza ◽

R. Wainberg ◽

N. Brum-Zorrilla ◽

F. Wallace ◽

...

Keyword(s):

Banding Pattern ◽

Satellite Dna ◽

C Banding

Download Full-text

Giemsa C-banding pattern in some cultivars of Trichosanthes dioica Roxb.

CYTOLOGIA ◽

10.1508/cytologia.52.419 ◽

1987 ◽

Vol 52 (3) ◽

pp. 419-423 ◽

Cited By ~ 5

Author(s):

Dilip De Sarker ◽

Kalyan B. Datta

Keyword(s):

Banding Pattern ◽

C Banding ◽

Trichosanthes Dioica

Download Full-text

Karyotype and C-banding Pattern of the Domestic Geese Anser anser Populations (Aves: Anatidae) in Egypt

Folia Biologica ◽

10.3409/fb62_1.49 ◽

2014 ◽

Vol 62 (1) ◽

pp. 47-56 ◽

Cited By ~ 1

Author(s):

Adel A. Basyouny Shahin ◽

Abdel Tawab Mohammed Ata ◽

Anwaar S. Mohammed Abu Shnaf

Keyword(s):

Banding Pattern ◽

Anser Anser ◽

C Banding

Download Full-text

The origin of wheat chromosomes 4A and 4B and their genome reallocation

Canadian Journal of Genetics and Cytology ◽

10.1139/g83-034 ◽

1983 ◽

Vol 25 (3) ◽

pp. 210-214 ◽

Cited By ~ 45

Author(s):

J. Dvořák

Keyword(s):

Triticum Aestivum ◽

Banding Pattern ◽

The Other ◽

Evolutionary Lineage ◽

C Banding ◽

B Genome ◽

A Genome

Triticum aestivum chromosome "4A" is, like the B genome chromosomes, extensively heterochromatic while the remaining six A genome chromosomes are not. In the presence of the Ph gene it does not pair with any chromosome of einkorn wheats, T. monococcum and T. urartu, the source of the A genome. It is shown here that the same chromosome is also present in T. timopheevii which represents the other evolutionary lineage of wheats. The "4A" chromosomes of T. timopheevii and T. aestivum pair poorly with each other, like the B genome chromosomes of the two lineages, while the remaining A genome chromosomes, except for one arm, pair relatively well. Hence, in both lineages chromosome "4A" has the attributes of the B genome chromosomes, not of the A genome chromosomes. The C-banding pattern of chromosome "4A" of T. aestivum and T. timopheevii closely resembles the C-banding pattern of a chromosome of T. speltoides and less closely chromosome 4B1 of T. sharonense. On the basis of this and other evidence it is concluded that this chromosome was contributed by a species of the section Sitopsis and, consequently, belongs to the B genome. Additionally, there is evidence that the chromosome that was originally designated "4B" belongs to the A genome.

Download Full-text

C-heterochromatin and NORs distribution in karyotypes of three vespertilionid bat species from Turkey

Biologia ◽

10.1515/biolog-2015-0044 ◽

2015 ◽

Vol 70 (3) ◽

Author(s):

Atilla Arslan ◽

Jan Zima ◽

Irfan Albayrak ◽

Tarkan Yorulmaz ◽

Emine Arslan

Keyword(s):

Moderate Amount ◽

C Banding ◽

Banding Analysis ◽

Autosomal Pair ◽

Chromosomal Banding ◽

Eptesicus Serotinus

AbstractThe chromosomal banding analysis of the karyotypes of Turkish populations of Eptesicus serotinus, Nyctalus lasiopterus and Barbastellus barbastellus was performed with the use of C-banding and Ag-NOR staining. The results obtained in E. serotinus and N. lasiopterus were congruent with previous data reported from other regions. The karyotype of E. serotinus (2n = 50, NF = 52) contained a moderate amount of centromeric C-heterochromatin and a single NOR was localized in an acrocentric autosomal pairs. The karyotype of N. lasiopterus (2n = 42, NF = 54) contained a higher amount of centromeric C-heterochromatin and the NORs were localized in two autosomal pairs. The karyotype of B. barbastellus was standard in its general characteristics (2n = 32, NF = 54, low amount of C-heterochromatin) but the NOR was localized in only one acrocentric autosomal pair. In studies from other regions, the NORs were recognized in all five acrocentric autosomal pairs of the complement of B. barbastellus.

Download Full-text

A Gene in Drosophila That Produces a New Chromosomal Banding Pattern

Science ◽

10.1126/science.137.3534.993-a ◽

1962 ◽

Vol 137 (3534) ◽

pp. 993-994 ◽

Cited By ~ 10

Author(s):

L. Levine ◽

L. Van Valen

Keyword(s):

Banding Pattern ◽

Chromosomal Banding

Download Full-text

Cytotaxonomy of four European species in the Eusimulium vernum group (Diptera: Simuliidae)

Canadian Journal of Zoology ◽

10.1139/z87-470 ◽

1987 ◽

Vol 65 (12) ◽

pp. 3102-3115 ◽

Cited By ~ 15

Author(s):

Fiona F. Hunter

Keyword(s):

Banding Pattern ◽

Polytene Chromosomes ◽

B Chromosomes ◽

European Species ◽

Y Chromosomes ◽

Chromosomal Banding ◽

Chromosome Iii ◽

Interspecific Comparisons

The polytene chromosomes of four closely related Eusimulium (Roubaud) morphospecies from Europe have been examined. These are Eusimulium vernum (Macquart), E. costatum (Friedrichs), E. cryophilum (Rubtzov), and E. carpathicum (Knoz). Interspecific comparisons indicate that vernum and costatum are homosequential in chromosomal banding pattern; however, costatum does differ from vernum in possessing a conspicuous chromocenter. Both species may have B chromosomes, but these are not identical. Three kinds of vernum populations are found: pure X0Y0 (with undifferentiated X and Y chromosomes), pure X0Y1 (with males heterozygous for IIS-1 ve), and mixed X0Y0/X0Y1 populations. Only two European vernum cytotypes are indicated. Eusimulium cryophilum and E. carpathicum share a suite of autosomal polymorphisms as well as a fixed paracentric (IL-2) and a fixed pericentric (IIIP-1) inversion with respect to the vernum "Knebworth" standard. They differ from one another by three fixed inversions (IIS-1, IIIS-3, and IIIS-4). It is argued that at least two siblings, cryophilum A and cryophilum B, exist within cryophilum s.l. Sections 86B and 91C in the long arm of chromosome III appear to be extremely labile for breakage and reunion phenomena because several tandem or near-tandem inversions occur in this area. A cytophylogeny of the taxa under study is presented.

Download Full-text