An eye color mutant (tan) in the tsetse fly, Glossina palpalis palpalis (Diptera: Glossinidae)

Genome ◽  
1987 ◽  
Vol 29 (6) ◽  
pp. 828-833 ◽  
Author(s):  
F. D'Haeseleer ◽  
J. van den Abbeele ◽  
R. H. Gooding ◽  
B. M. Rolseth ◽  
A. Van der Vloedt
Keyword(s):  
Key Words ◽  
Assortative Mating ◽  
X Chromosome ◽  
Tsetse Fly ◽  
Compound Eyes ◽  
Glossina Palpalis Palpalis ◽  
Wild Type ◽  
Eye Color ◽  
Color Mutant ◽  
Glossina Palpalis

A nondeleterious eye color mutant, tan, is described as the first visible mutant in Glossina palpalis palpalis (Robineau-Desvoidy). The locus for tan is on the X chromosome approximately 24 recombination units from the locus for testicular esterase (Est-t). Homozygous (tan/tan) females and hemizygous (tan/Y) males have compound eyes and ocelli that are pink (instead of dark brown) while the flies are alive but these fade to a tan color after death. No other differences in physical appearance of flies were found. General bionomic features of tan flies are not significantly different from those of wild-type flies. The mutant flies have a lower propensity for mating than do wild-type flies in the laboratory and there is assortative mating. Approximately half the offspring produced by tan females, which had mated twice, are sired by the second mate. Wild-type and tan adults excrete kynurenine and both types have tryptophan oxygenase and kynurenine formamidase. The lesion causing the abnormal eye color in the tan mutant appears to occur late in the metabolism of tryptophan to xanthommatin, possibly at the level of retention of xanthommatin in the eyes. Key words: eye color mutant, Glossina.

X-chromosome mapping experiments suggest occurrence of cryptic species in the tsetse fly Glossina palpalis palpalis

2004 ◽  
Vol 82 (12) ◽  
pp. 1902-1909 ◽  
Author(s):  
R H Gooding ◽  
P Solano ◽  
S Ravel
Keyword(s):  
Cryptic Species ◽  
X Chromosome ◽  
Microsatellite Loci ◽  
Chromosome Mapping ◽  
Tsetse Fly ◽  
Glossina Palpalis Palpalis ◽  
Crossing Experiments ◽  
Chromosome Map ◽  
Cryptic Taxa ◽  
Glossina Palpalis

Using flies from colonies of Glossina palpalis palpalis (Robineau-Desvoidy, 1830) (Diptera: Glossinidae) that originated in Nigeria and Bas-Zaire, the two microsatellite loci Gpg19.62 and Gpg55.3 have been added to the X-chromosome map, thus increasing to seven the number of loci mapped on that chromosome. During the mapping and other crossing experiments, sterile F1 and backcross males were found. Similarities between the patterns of sterility found in the present study and those occurring during hybridization of some subspecies of tsetse suggest that the nominal taxon G. p. palpalis may contain cryptic taxa. Differences in the width of the postgonite head of males from the two colonies were consistent with this suggestion.

A white eye color mutant in the tsetse fly Glossina morsitans submotsitans Newstead (Diptera: Glossinidae)

Genome ◽  
1997 ◽  
Vol 40 (1) ◽  
pp. 165-169 ◽  
Author(s):  
C. M. Challoner ◽  
R. H. Gooding
Keyword(s):  
Spontaneous Mutation ◽  
Tsetse Fly ◽  
Tryptophan Metabolism ◽  
Compound Eyes ◽  
Glossina Morsitans ◽  
Eye Color ◽  
Glossina Morsitans Submorsitans ◽  
Color Mutant

A spontaneous mutation in Glossina morsitans submorsitans Newstead is described. The mutant, designated wht, has white compound eyes but the ocelli and testes have normal coloration. Mutants have lower than normal amounts of xanthommatin and pteridines in their heads. The lesion occurs late in the tryptophan to xanthommatin pathway, in the storage of xanthommatin in the compound eyes, or, most likely, in the transport of precursors into the compound eyes. The locus wht is on the X chromosome.Key words: tsetse, Glossina morsitans submorsitans, wht mutant, tryptophan metabolism.

scholarly journals A peridomestic population of the tsetse fly Glossina palpalis palpalis Robineau-Desvoidy, 1830 (Diptera: Glossinidae) at Kontagora town, Niger state, Nigeria

2004 ◽  
Vol 11 (4) ◽  
pp. 599-610 ◽  
Author(s):  
A. B. Ahmed
Keyword(s):  
Tsetse Fly ◽  
Glossina Palpalis Palpalis ◽  
Infection Rates ◽  
Wet Season ◽  
Abnormal Behaviour ◽  
The Public ◽  
Close Proximity ◽  
Reservoir Hosts ◽  
Glossina Palpalis ◽  
Wild Life

The present article considers some aspects of a peridomestic population of the tsetse fly Glossina palpalis palpalis Robineau-Desvoidy, 1830 in Kontagora, Nigeria. This situation characterizes an abnormal behaviour of the vector, and it is of significant epidemiological importance. Data on the ecology of this species were collected in 1995 and 1999. The results indicated that the species exists during both dry and wet seasons; approximately 30.0% of the catches were gorged with blood giving a MHS of 2.4, indicating a well-nourished population. Dissection of inseminated pars indicated pregnancy rates of approximately 30.0% and 70.0% in the dry and wet seasons and the presence of all 4 stages of pregnancy, suggesting that breeding occurs at both seasons. Longevity of flies was approximately 16 days in dry season and 25 days in the wet season. Overall results indicated that vector/host contact was high and the fly population has adapted and actively breeding in the area. Trypanosome infection rates of 18.2% consist of 1 brucei-type and 5 vivax-type infections. The public health implications of the close proximity of the wild natural reservoir hosts of the human T. b. gambiense Dutton, 1902 parasites at the Kainji Wild Life park is discussed.

Eye Pigments in Wild-Type and Eye-Color Mutant Strains of the African Malaria Vector Anopheles gambiae

1995 ◽  
Vol 86 (5) ◽  
pp. 375-380 ◽  
Author(s):  
C. B. Beard ◽  
M. Q. Benedict ◽  
J. P. Primus ◽  
V. Finnerty ◽  
F. H. Collins
Keyword(s):  
Anopheles Gambiae ◽  
Malaria Vector ◽  
Wild Type ◽  
Eye Color ◽  
Color Mutant ◽  
Mutant Strains

PRELIMINARY ANALYSIS OF GENETICS OF HYBRID STERILITY IN CROSSES OF GLOSSINA PALPALIS PALPALIS (ROBINEAU-DESVOIDY) AND GLOSSINA PALPALIS GAMBIENSIS VANDERPLANK

1988 ◽  
Vol 120 (11) ◽  
pp. 997-1001 ◽  
Author(s):  
R.H. Gooding
Keyword(s):  
X Chromosome ◽  
Hybrid Sterility ◽  
Marker Gene ◽  
Glossina Palpalis Palpalis ◽  
Hybrid Male ◽  
Hybrid Male Sterility ◽  
Chromosome Marker ◽  
Glossina Palpalis Gambiensis ◽  
Almost All ◽  
Glossina Palpalis

AbstractGlossina palpalis palpalis (Robineau-Desvoidy) and Glossina palpalis gambiensis Vanderplank hybridized readily in the laboratory but hybridized females produced fewer offspring than did females that mated with their own kind. Most hybrid females were fertile when backcrossed to either G. p. palpalis or G. p. gambiensis but almost all hybrid males were sterile. About half of the backcross males were able to fertilize G. p. palpalis and G. p. gambiensis. By using an X chromosome marker gene, tan, evidence was obtained that the X chromosome is involved in hybrid male sterility, either through interaction with the Y chromosome or the autosomes of the other subspecies. There was no evidence for maternally inherited sterility factors of a type that confer unidirectional sterility on hybrid or backcross males.

First isolation of Enterobacter, Enterococcus, and Acinetobacter spp. as inhabitants of the tsetse fly (Glossina palpalis palpalis) midgut

2009 ◽  
Vol 9 (6) ◽  
pp. 1364-1370 ◽  
Author(s):  
Anne Geiger ◽  
Marie-Laure Fardeau ◽  
Pascal Grebaut ◽  
Gedeao Vatunga ◽  
Théophile Josénando ◽  
...  
Keyword(s):  
Tsetse Fly ◽  
Glossina Palpalis Palpalis ◽  
Acinetobacter Spp ◽  
Glossina Palpalis
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