Geographic variability of the polytene chromosome banding sequence of non-biting midge Chironomus pseudothummi Str. (Diptera, Chironomidae)

2008 ◽  
Vol 2 (4) ◽  
pp. 417-427
Author(s):  
I. I. Kiknadze ◽  
A. D. Broshkov ◽  
A. G. Istomina ◽  
L. I. Gunderina ◽  
H. Vallenduuk
Keyword(s):  
Polytene Chromosome ◽  
Chromosome Banding ◽  
Geographic Variability ◽  
Biting Midge ◽  
Banding Sequence

Polytene chromosome relationships of five species of the Anopheles dirus complex in Thailand

Genome ◽  
1995 ◽  
Vol 38 (3) ◽  
pp. 426-434 ◽  
Author(s):  
Anan Poopittayasataporn ◽  
Visut Baimai
Keyword(s):  
Salivary Gland ◽  
Polytene Chromosome ◽  
Chromosome Banding ◽  
Natural Populations ◽  
Anopheles Dirus ◽  
Structural Conformation ◽  
Salivary Gland Polytene Chromosome ◽  
Chromosome Arm ◽  
And Inversion ◽  
Paracentric Inversions

Photographic maps and rearrangements of each salivary gland polytene chromosome arm of Anopheles nemophilous (species F) and of An. dirus species A, B, C, and D of the Dirus group from natural populations in Thailand are presented. Structural conformation of heterokaryotypes and comparison of chromosome banding sequences reveal 10 paracentric inversions. The data on fixed inversion of 3Rb and inversion polymorphism of the X chromosome shared by these species were used to construct a phylogeny of the five members of the An. dirus complex, thereby outlining their patterns of speciation through chromosomal rearrangements.Key words: polytene chromosome rearrangements, Anopheles dirus, phylogeny.

Complexity decompositions in the problem of comparison of polytene chromosome banding sequences

2011 ◽  
Vol 21 (3) ◽  
pp. 534-537
Author(s):  
L. A. Miroshnichenko ◽  
V. D. Gusev ◽  
I. I. Kiknadze ◽  
L. I. Gunderina ◽  
A. G. Istomina
Keyword(s):  
Polytene Chromosome ◽  
Chromosome Banding

Polytene chromosome mapping in Ceratitis capitata (Diptera: Tephritidae)

Genome ◽  
1987 ◽  
Vol 29 (4) ◽  
pp. 598-611 ◽  
Author(s):  
D. G. Bedo
Keyword(s):  
Salivary Gland ◽  
Polytene Chromosome ◽  
Chromosome Banding ◽  
Mitotic Chromosome ◽  
Ceratitis Capitata ◽  
Polytene Chromosomes ◽  
Chromosome Mapping ◽  
Banding Patterns ◽  
Homologous Chromosomes ◽  
Characteristic Features

Polytene chromosome reference maps of the five autosomes of Ceratitis capitata from male pupal orbital bristle trichogen cells are presented and a correlation is established between two of them and the two largest of the five autosomes in the haploid mitotic complement. Characteristic features of each chromosome are described identifying areas that are difficult to analyze and noting the existence of common alternative band expression. A quantitative analysis of the mitotic karyotype of C. capitata indicates that the two smallest autosome pairs cannot be reliably distinguished. This may present problems with future attempts to establish homologies between the remaining mitotic and polytene chromosomes. A comparison of polytene chromosome banding patterns from salivary gland and trichogen cells failed to find any homologous regions, or even to identify homologous chromosomes. The banding differences are not explained by variation in puffing patterns, heterochromatin expression, or polyteny levels, but appear to reflect fundamental differences in banding patterns of the chromosomes in each tissue. Key words: Ceratitis capitata, polytene chromosome map, mitotic chromosome measurements.

A polytene chromosome study of four populations of Anopheles aquasalis from Venezuela

Genome ◽  
1992 ◽  
Vol 35 (2) ◽  
pp. 327-331 ◽  
Author(s):  
Alba Moncada Perez ◽  
Jan Conn
Keyword(s):  
Plasmodium Vivax ◽  
Malaria Transmission ◽  
Polytene Chromosome ◽  
Banding Pattern ◽  
Chromosome Banding ◽  
Polytene Chromosomes ◽  
Distinct Species ◽  
Santa Fe ◽  
Anopheles Aquasalis ◽  
Collection Sites

Polytene chromosome studies were undertaken to elucidate taxonomic relationships among populations of Anopheles aquasalis and A. emilianus in Venezuela. Four collection sites were chosen: two in Sucre state (Santa Fe and Guayana) where A. aquasalis (considered to be A. emilianus by Gabaldón and Escalante) is presumed to be the major regional vector of Plasmodium vivax; and two in areas where no malaria transmission occurs (Caño Rico, Aragua state, and Puerto Cabello, Carabobo state). The chromosome banding pattern of the four populations was identical and conformed to the standard chromosome map of A. aquasalis from Brazil. These results suggest that the population from Santa Fe and Guayana, considered to be A. emilianus, is conspecific with A. aquasalis. However, its status as a distinct species with a homosequential polytene chromosome banding pattern cannot be ruled out.Key words: polytene chromosomes, Anopheles aquasalis, malaria, chromosome banding.

Complexity decompositions in the problem of comparison of polytene chromosome banding sequences

2013 ◽  
Vol 23 (1) ◽  
pp. 98-104
Author(s):  
L. A. Miroshnichenko ◽  
V. D. Gusev ◽  
I. I. Kiknadze ◽  
L. I. Gunderina ◽  
A. G. Istomina
Keyword(s):  
Polytene Chromosome ◽  
Chromosome Banding

Geographic variation in the polytene chromosome banding pattern of the Holarctic midge Chironomus (Camptochironomus) tentans (Fabricius)

1996 ◽  
Vol 74 (1) ◽  
pp. 171-191 ◽  
Author(s):  
Iya I. Kiknadze ◽  
Karlygash G. Aimanova ◽  
Larissa I. Gunderina ◽  
Malcolm G. Butler ◽  
J. Kevin Cooper
Keyword(s):  
North America ◽  
Polytene Chromosome ◽  
Sibling Species ◽  
Banding Pattern ◽  
Cytogenetic Analysis ◽  
Western Europe ◽  
Chromosome Banding ◽  
Genetic Relationships ◽  
Polytene Chromosomes ◽  
European Populations

Polytene chromosomes of Chironomus (Camptochironomus) tentans from Europe, Siberia, and North America were examined to clarify genetic relationships among widely distributed populations of this Holarctic midge. This first extensive cytogenetic analysis of Siberian populations confirms earlier suppositions that C. tentans karyotypes are quite uniform across the Palearctic from western Europe to Yakutia. Greater differences exist among North American populations in Minnesota, Michigan, and Massachusetts, and as a group, these Nearctic populations share so few banding sequences with Palearctic C. tentans that recognition of discrete sibling species on each contintent is warranted. Photomaps of polytene chromosomes for both Palearctic and Nearctic sibling species are presented, and banding sequences are described with standardized notation. In total, 42 inversion sequences were found in the 18 Siberian populations examined, 15 of which were previously undescribed. Of the 19 sequences found in the three American populations studied, only 6 were shared with the Palearctic. Three of the seven chromosome arms in Nearctic C. tentans had no sequences in common with European populations and four shared none with Siberian populations.

Divergence of the polytene chromosome banding sequences as a reflection of evolutionary rearrangements of the genome linear structure

2005 ◽  
Vol 41 (2) ◽  
pp. 130-137 ◽  
Author(s):  
L. I. Gunderina ◽  
I. I. Kiknadze ◽  
A. G. Istomina ◽  
V. D. Gusev ◽  
L. A. Miroshnichenko
Keyword(s):  
Polytene Chromosome ◽  
Chromosome Banding ◽  
Linear Structure

The geographic variability of the Plains Bison. A reconstruction using the earliest European illustrations of both subspecies*

1989 ◽  
Vol 16 (2) ◽  
pp. 169-190 ◽  
Author(s):  
INGO KRUMBIEGEL ◽  
GUNTER G. SEHM
Keyword(s):  
Bison Bison ◽  
Geographic Variability ◽  
Northern Plains ◽  
Southern Plains

The subspecific division of the Plains Bison by one of the authors (Krumbiegel, 1980) into a Southern Plains Bison Bison bison bison (Linnaeus, 1758) and a Northern Plains Bison Bison bison montanae Krumbiegel, 1980, is here corroborated by reference to early illustrations and reports unknown to mammalogists, thereby proving that the authors' historiographical approach can be used in establishing taxonomic reconstructions of recently exterminated species or subspecies.

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