Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). XII. Comparison of field-collected and laboratory-reared flies

1986 ◽  
Vol 28 (6) ◽  
pp. 1016-1021 ◽  
Author(s):  
R. H. Gooding ◽  
A. M. Jordan
Keyword(s):  
Polyacrylamide Gel Electrophoresis ◽  
Glossina Morsitans Morsitans ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
University Of Alberta ◽  
Rare Alleles ◽  
Locus Number ◽  
Closed Colony ◽  
University Of Bristol ◽  
The University

Adult Glossina morsitans morsitans Westwood emerging from puparia collected at Rekometjie, Zimbabwe, were compared at 13 loci with G. m. morsitans from a closed colony at the Tsetse Research Labortory (TRL), University of Bristol, by polyacrylamide gel electrophoresis. The populations were not significantly different with respect to mean heterozygosity per locus, average effective number of alleles per locus, number of polymorphic loci, or allele frequencies at 12 loci. (The exception was Alkph.) Rare alleles at To, Est-t, and Alkph were found only in Rekometjie flies while rare alleles at G6pd and Est-2 were found only in TRL flies. No significant level of sterility was found in F1 flies produced in reciprocal crosses of Rekometjie flies with G. m. morsitans from the University of Alberta colony.Key words: Glossina, tsetse fly, isozymes, heterozygosity.

GENETICS OF GLOSSINA MORSITANS MORSITANS (DIPTERA: GLOSSINIDAE): I. ELECTROPHORETIC BANDING PATTERNS OF XANTHINE OXIDASE AND ALDEHYDE OXIDASE

1978 ◽  
Vol 110 (12) ◽  
pp. 1233-1239 ◽  
Author(s):  
B.M. Rolseth ◽  
R.H. Gooding
Keyword(s):  
Xanthine Oxidase ◽  
Aldehyde Oxidase ◽  
Glossina Morsitans Morsitans ◽  
Single Locus ◽  
Glossina Morsitans ◽  
Gene Frequencies ◽  
University Of Alberta ◽  
Laboratory Populations ◽  
University Of Bristol ◽  
The University

AbstractPolyacrylamide gel (6%) electrophoresis (at pH 8.2) of the thoraces of adult Glossina morsitans morsitans Westwood revealed three xanthine oxidase (XO) phenotypes and six aldehyde oxidase (AO) phenotypes. Each enzyme was postulated to be under the control of a single locus, XO with two alleles and AO with three alleles. Gene frequencies were in Hardy-Weinberg equilibrium for both loci in two laboratory populations. Breeding experiments provided direct evidence for single locus control of each enzyme. No significant differences in phenotype frequencies were observed between the colony maintained at the University of Alberta, Canada and the parent colony at the University of Bristol, England. A colony of highly inbred flies from the University of Bristol had only one phenotype of AO and of XO.

scholarly journals Host-seeking efficiency can explain population dynamics of the tsetse fly Glossina morsitans morsitans in response to host density decline

2017 ◽  
Vol 11 (7) ◽  
pp. e0005730 ◽  
Author(s):  
Jennifer S. Lord ◽  
Zinhle Mthombothi ◽  
Vitalis K. Lagat ◽  
Fatumah Atuhaire ◽  
John W. Hargrove
Keyword(s):  
Population Dynamics ◽  
Host Density ◽  
Glossina Morsitans Morsitans ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
Host Seeking

scholarly journals Two Tsetse Fly Species, Glossina palpalis gambiensis and Glossina morsitans morsitans, Carry Genetically Distinct Populations of the Secondary Symbiont Sodalis glossinidius

2005 ◽  
Vol 71 (12) ◽  
pp. 8941-8943 ◽  
Author(s):  
Anne Geiger ◽  
Gérard Cuny ◽  
Roger Frutos
Keyword(s):  
Genetic Diversity ◽  
Length Polymorphism ◽  
Fragment Length ◽  
Fragment Length Polymorphism ◽  
Glossina Morsitans Morsitans ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
Glossina Palpalis Gambiensis ◽  
Sodalis Glossinidius ◽  
Glossina Palpalis

ABSTRACT Genetic diversity among Sodalis glossinidius populations was investigated using amplified fragment length polymorphism markers. Strains collected from Glossina palpalis gambiensis and Glossina morsitans morsitans flies group into separate clusters, being differentially structured. This differential structuring may reflect different host-related selection pressures and may be related to the different vector competences of Glossina spp.

Sterilising effects of benzyl-l,3-benzodioxoles on the tsetse fly Glossina morsitans morsitans Westwood (Diptera: Glossinidae)

1982 ◽  
Vol 72 (3) ◽  
pp. 473-481 ◽  
Author(s):  
P. A Langley ◽  
M. A Trewern ◽  
L. Jurd
Keyword(s):  
Topical Application ◽  
Glossina Morsitans Morsitans ◽  
Mature Oocyte ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
Plant Materials ◽  
Female Survival ◽  
Low Solubility ◽  
Blood Meals ◽  
Contact Insecticides

AbstractThree benzyl-l,3-benzodioxoles and three benzylphenols were tested for their ability to sterilise Glossina morsitans morsitans Westw. following topical application in acetone. Two of the former compounds, 5-ethoxy-6- (4-methoxyphenylmethyl)-l,3-benzodioxole and 5-ethoxy-6-[l-(4-meth-oxyphenyl)ethyl]-l,3-benzodioxole, caused total sterility in females at a dose of 10 μg per fly, and remained effective even after one year's storage at 4°C. Dose-fecundity data indicate a reduction to 50% fecundity (ED50) was achieved with 2·5 μg of the former or 0·5 μg of the latter per fly. An ED90 of 8·5 μg and 2·5 μg, respectively, is indicated. The latter compound reduced the survival of treated females and males and surviving males were incapable of inseminating even though copulation appeared normal. The effects on female survival and fecundity, of feeding the compounds at 0·25 and 1·0% in blood, were variable, owing to their low solubility and variations in the size of blood-meals. The highest doses of the former compound led to ovarian atrophy in females, which can be described as an effect on fecundity. Lower doses induced sterility through egg death and atrophy after ovulation. The latter compound acted more rapidly than the former, preventing ovulation of the first mature oocyte in a higher proportion of flies. The activity of these compounds, which were derived by modification of plant materials, and are non-mutagenic, renders them likely candidates for evaluation as contact insecticides for Glossina in the field.

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