Robertsonian chromosome polymorphism in the Arabian oryx (Oryx leucoryx)

1990 ◽  
Vol 54 (3-4) ◽  
pp. 161-163 ◽  
Author(s):  
E.P. Cribiu ◽  
J.F. Asmondé ◽  
V. Durand ◽  
A. Greth ◽  
S. Anagariyah
Keyword(s):  
Chromosome Polymorphism ◽  
Arabian Oryx ◽  
Robertsonian Chromosome

scholarly journals Robertsonian chromosome polymorphism of Akodon molinae (Rodentia: Sigmodontinae): analysis of trivalents in meiotic prophase

2001 ◽  
Vol 74 (1) ◽  
Author(s):  
RAÚL FERNÁNDEZ-DONOSO ◽  
SOLEDAD BERRÍOS ◽  
JESUS PAGE ◽  
MARÍA S MERANI ◽  
MARTA S LIZARRALDE ◽  
...  
Keyword(s):  
Meiotic Prophase ◽  
Chromosome Polymorphism ◽  
Robertsonian Chromosome

Pemphigus foliaceus in Arabian oryx (Oryx leucoryx)

2021 ◽  
pp. 030098582110305
Author(s):  
Jeffrey B. Curtiss ◽  
Michelle Lewis ◽  
Emily P. Mitchell
Keyword(s):  
Medical Records ◽  
Skin Lesions ◽  
Domestic Animals ◽  
Histological Evaluation ◽  
Pemphigus Foliaceus ◽  
Arid Environments ◽  
Zoological Garden ◽  
Causative Agents ◽  
Arabian Oryx ◽  
Tail Tip

Pemphigus foliaceus (PF) is an autoimmune acantholytic skin disease described in humans, dogs, cats, horses, goats, and sheep. From 2003 to 2016, six Arabian oryx ( Oryx leucoryx) at the National Zoological Garden in Pretoria, South Africa, developed progressive, bilaterally symmetrical, hyperkeratotic skin lesions and pustules consistent with PF. Lesions were similar to those observed in domestic animals and primarily affected the pinnae, face and nasal planum, distal legs, and tail tip. Histological evaluation of suspect PF skin lesions in affected animals, evaluation of medical records for treatments received, causative agents in the diet and environment, and special stains for infectious organisms yielded no consistent inciting cause. The Arabian oryx is a species highly adapted to arid environments of the desert and has recently survived from a severe genetic bottleneck; both of these factors may have contributed to the development of PF in these animals.

On the Maintenance of Sex Chromosome Polymorphism by Sex-Antagonistic Selection

2011 ◽  
Vol 178 (4) ◽  
pp. 515-524 ◽  
Author(s):  
Olivier Blaser ◽  
Samuel Neuenschwander ◽  
Nicolas Perrin
Keyword(s):  
Sex Chromosome ◽  
Chromosome Polymorphism ◽  
Antagonistic Selection ◽  
Maintenance Of Sex

The hairy lizard: heterothermia affects anaesthetic requirements in the Arabian oryx ( Oryx leucoryx )

2017 ◽  
Vol 44 (4) ◽  
pp. 899-904 ◽  
Author(s):  
Mads F. Bertelsen ◽  
Osama Mohammed ◽  
Tobias Wang ◽  
Paul R. Manger ◽  
David Michael Scantlebury ◽  
...  
Keyword(s):  
Arabian Oryx

Chromosome polymorphism in natural populations of Anopheles quadrimaculatus Say species A and B

Genome ◽  
1988 ◽  
Vol 30 (2) ◽  
pp. 138-146 ◽  
Author(s):  
P. E. Kaiser ◽  
J. A. Seawright ◽  
B. K. Birky
Keyword(s):  
X Chromosome ◽  
Southeastern United States ◽  
Polytene Chromosomes ◽  
Natural Populations ◽  
Chromosome 3 ◽  
Chromosome Polymorphism ◽  
Chromosome 2 ◽  
Anopheles Quadrimaculatus ◽  
The Right ◽  
Maculipennis Complex

Ovarian polytene chromosomes from eight populations of Anopheles quadrimaculatus in the southeastern United States were observed for chromosomal polymorphisms. Two sibling species, species A and B, each with intraspecific inversions, were distinguished. Species A correlates with the previously published standard maps for salivary gland and ovarian nurse-cell polytene chromosomes. Species A was found at all eight collection sites, and five of these populations also contained species B. Three inversions on the right arm of chromosome 3 were observed in species A. Species B contained a fixed inversion on the X chromosome, one fixed and one floating inversion on the left arm of chromosome 2, and one fixed and one floating inversion on the right arm of chromosome 3. The fixed inversion on the X chromosome makes this the best diagnostic chromosome for distinguishing species A and B. An unusual dimorphism in the left arm of chromosome 3, found in both species A and B, contained two inversions. The heterokaryotypes, as well as two distinct homokaryotypes, were seen in all of the field populations. Intraspecific clinal variations in the frequencies of the species A inversions were noted. The Florida populations were practically devoid of inversions, the Georgia and Alabama populations contained some inversions, and the Arkansas population was mostly homozygous for two of the inversions. The phylogenetic relationships of species A and B to the Maculipennis complex (Nearctic) are discussed.Key words: Anopheles, inversion, populations, chromosome polymorphism, phylogenetics.

Molecular Genetic Analysis of Population Structure of the Great Zhuz Kazakh Tribal Union Based on Y-Chromosome Polymorphism

2018 ◽  
Vol 33 (2) ◽  
pp. 91-96
Author(s):  
Y. Y. Ashirbekov ◽  
A. V. Khrunin ◽  
D. M. Botbayev ◽  
A. M. Belkozhaev ◽  
A. O. Abaildayev ◽  
...  
Keyword(s):  
Population Structure ◽  
Genetic Analysis ◽  
Y Chromosome ◽  
Molecular Genetic ◽  
Molecular Genetic Analysis ◽  
Chromosome Polymorphism
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