A comparison of the performance of laboratory colonies of Glossina pallidipes Austen from two allopatric populations in Kenya

Etten, Jaap Van

doi:10.1017/s1742758400000369

Cited by 10 publications

(20 citation statements)

References 7 publications

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“…Peak receptivity appears to coincide with maturation of the first egg (Fig. These differences confirm Van Etten's (1981) conclusion that there are differences in mating behaviour between different populations. Jaenson (1978) reported thatfew females were receptive until 4-5 days of age; about 50% copulated on day 5.…”

Section: Discussionsupporting

confidence: 69%

“…also described a successful protocol for the rearing of In the laboratory, G. morsitans readily mates G. pallidipes in the laboratory of Experimental after the first blood meal, usually 1-3 days after Entomology, University of Amsterdam. For example, Van Etten (1981) compared the performance of two laboratory colonies of G. pallidipes originating from Nguruman in the Rift Valley and Mwalewa Forest in the coastal area of Kenya. Mating can also occur between newlyprotocol is also being used at ILR AD, Nairobi with emerged unfed Glossina in laboratory emergence some success (Dr S. K. Moloo, pers.…”

Section: Introductionmentioning

confidence: 99%

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Mating efficiency in females of Glossina Pallidipes

Davies-Cole

Chaudhury

1990

Int. J. Trop. Insect Sci.

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Female sexual receptivity was studied in F x laboratory-reared Glossina pallidipes Austen, 1903 originating from Nguruman in the Rift Valley of Kenya. Females mated as early as 6 days old but reached peak receptivity at 9-13 days old (60-80%). Females did not immediately mate with more than one male. The mean spermathecal value (MS V) was highest between 7 and 14 days of age, and declined thereafter. The duration of copulation was comparatively short (mean = 24 min), and did not vary significantly with age. High female receptivity corresponded with maturity of ovariole A, which reached maximum length at an age of 10 days. These results are discussed in relation to mass rearing of G. pallidipes. Resume-La receptivite sexuelle femelle a ete etudiee chez des Glossina pallidipes, Austen 1903, elevees en laboraoire, et appartenant a une souche provenant de Nguruman dans le Rift Valley, auKenya. L'accouplement des femelles a lieu des le 6 erne jour d'age, mais le pic de creceptivite femelle est atteint entre 9 et 13 jours d'age (60 a 80 %). Les femelles ne s'acouplent pas immediatement avec plusd'un male. La valeur spermathecale moyenne est plus e levee entre 7 et 14 jours d'age et decrott au-dela. La duree de copulation est comparativement courte (moyenne = 24 mn), et ne varie pas significativement avec l'age. Le maximum de receptivite femelle correspond a la maturite de l'ovariole A, qui atteint une longueur maximale a 10 jours d'age. Ces resultats sont discutes en rapport avec elevage en masse de G. pallidipes.

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Section: Discussionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Mating efficiency in females of Glossina Pallidipes

Davies-Cole

Chaudhury

1990

Int. J. Trop. Insect Sci.

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“…This mating and breeding method was used on G. pallidipes maintained in the same laboratory (VAN ETTEN, 1981).…”

Section: Rearing Methodsmentioning

confidence: 99%

Ecological studies and laboratory rearing of the tsetse species Glossina longipennis Corti in Kenya

Owaga

1981

Int. J. Trop. Insect Sci.

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Observations were made on the tsetse species Glossina longipennis Corti in Nkruman escarpment, Kenya. The species inhabited relatively open areas of the bushland. The rate of infection with trypanosomes was studied as well as the activity pattern and amenability to trapping. Results of laboratory rearing are given. Trypanosome infection rate was higher in female flies than in male ones. The method of using a slow moving vehicle, resulted in the capture of more old flies than young ones-of both sexes-and more males than females. G. longipennis was not amenable to trapping by any of the two mechanical traps used (Moloo's trap, and the biconical trap of Challier and Laveissiere).

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“…Subsequently Jaenson (1978 a) reported a genetic basis for differences in copulation time between flies of allopatric populations in Kenya whilst Van Etten (1981) described differences in reproductive performance of laboratory colonies of G. pallidipes from two allopatric populations in Kenya and these populations were found to be polymorphic for a number of enzyme systems ( van Etten, 1982). Subsequently Jaenson (1978 a) reported a genetic basis for differences in copulation time between flies of allopatric populations in Kenya whilst Van Etten (1981) described differences in reproductive performance of laboratory colonies of G. pallidipes from two allopatric populations in Kenya and these populations were found to be polymorphic for a number of enzyme systems ( van Etten, 1982).…”

Section: Introductionmentioning

confidence: 99%

“…For example, in Zimbabwe it is known that G. pallidipes is repelled by man (Vale, 1974), while in the Lambwe valley of Kenya this species is the vector of human sleeping sickness. Attempts to rear G. pallidipes in captivity have not been successful in Zimbabwe but following the partially successful attempts of Harley & Cockings (1968) and R ogers & Kenyanjui (1972) in Uganda, and Jaenson (1978b and Van Etten (1981) in Kenya, a self-supporting colony of G. pallidipes from Uganda was established in Amsterdam (Leegwater-van der Linden, 1980Linden, , 1981Linden, , 1982. Vale, personal communication).…”

Section: Introductionmentioning

confidence: 99%

Genetic and behavioural differences between Glossina pallidipes from Uganda and Zimbabwe

Langley

Maudlin

Leedham

1984

Entomologia Exp Applicata

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Populations of Glossinapallidipes from opposite ends of the species range were studied in the laboratory.Flies from Uganda had a higher reproductive rate than flies from Zimbabwe but produced slightly smaller offspring. The Zimbabwe flies were noticeably less willing to mate than those from Uganda under identical conditions but cross-breeding experiments resulted in similar reproductive rates regardless of the origin of the sexes; unwillingness to mate could not be attributed to one or other sex of the Zimbabwe flies. The Fl male hybrids showed normal fertility when back-crossed to females of maternal origin. Hence there is no indication that speciation has occurred. The flies from Zimbabwe possess supernumerary (B) chromosomes which are absent from the Uganda population. C-banding techniques showed the presence of a heavilybanded Y-chromosome in the Uganda flies while that of the Zimbabwe flies was featureless. The origin of the male parent in hybrids was clearly identifiable from an examination of the Y-chromosome while supernumeraries were present in the offspring from both crosses but in smaller numbers than in the Zimbabwe parents. The possession of supernumerary chromosomes is discussed in relation to the fitness of a population within a particular natural or laboratory environment.

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A comparison of the performance of laboratory colonies of Glossina pallidipes Austen from two allopatric populations in Kenya

Cited by 10 publications

References 7 publications

Mating efficiency in females of Glossina Pallidipes

Mating efficiency in females of Glossina Pallidipes

Ecological studies and laboratory rearing of the tsetse species Glossina longipennis Corti in Kenya

Genetic and behavioural differences between Glossina pallidipes from Uganda and Zimbabwe

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