Inherited Sterility in Progeny of Irradiated Male Tobacco Budworms1: Effects on Reproduction, Developmental Time, and Sex Ratio

Proshold, F. I.; Bartell, J. A.

doi:10.1093/jee/63.1.280

Cited by 35 publications

(28 citation statements)

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“…Similar results were obtained with pink bollworms (Cheng and North, 1972) and other lepidopteran species (Proverbs, 1962;North and Holt, 1969;Proshold and Bartell, 1970). Similar results were obtained with pink bollworms (Cheng and North, 1972) and other lepidopteran species (Proverbs, 1962;North and Holt, 1969;Proshold and Bartell, 1970).…”

Section: Discussionsupporting

confidence: 79%

Potential for the use of genetic methods for the control of Chilo spp.

Okoth

1990

Int. J. Trop. Insect Sci.

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The control of pest populations through the manipulation of their genetic component or mechanism of inheritance is becoming increasingly important. Two of the most promising genetic methods for the control of lepidopteran insects are inherited or F J and hybrid sterility.To induce F t sterility in C. partellus, male pupae were irradiated with various doses of gamma radiation (0-15 krad) and emerging adults of normal appearance were used in crosses with normal females. The ¥ l progeny were reared on artificial diet and the resulting adult males were crossed with unirradiated females to give F 2 , the process being repeated until F 5 progeny were obtained. For each generation lifespan of males, oviposition, egg hatchability and sex ratio were carefully recorded. The results showed that females mated with irradiated males oviposited significantly fewer eggs than normal and that this phenomenon was perpetuated over several generations. Hatchability of eggs laid by females mated to irradiated males or male progeny was significantly lower than that of the controls and sex ratio was distorted slightly in favour of males in all generations observed. The lower oviposition, lower egg hatch, distortion of sex ratio in favour of males and the apparent persistence of sterility over several generations offer the potential of inherited sterility for the control of C. partellus.Resume-L'utilisation des manipulations genetiques et des mecanismes d'heredite, comme moyens de lutte contre les ravageurs de cultures devient de plus en plus importante. La sterility he'rite'e ou sterilite en F ; sont les deux methods les plus promettantes.Pour induire la sterilite en F 1 chez C. partellus males, des pupes ont ete exposes a des doses varied de rayons gamma (0-15 krad), les adultes d'apparence normale qui ont emerges ont ete croises avec des femelles norm ales. La generation .F l obtenue a ete eleve sur un milieu de culture artificiel et ses adultes males ont ete croises une fois de plus avec des femelles norm ales produisant ainsi la generation F 2 . Cet exercise a ete repete jusqu'a l'obtension de la generation F,. Pour chacune des generations la duree de vie des males, l'oviposition, l'eclosion des oeufs et le taux sexuel ont ete soigneusement enregistres. Les resultats ont montre que les femelles croisles avec des males irradies pondaient peu d'oeufs par rapport a la normale et que ce phenomene se repetait sur plusieurs generations. D'autre part l'eclosion des oeufs ainsi obtenus a ete significativement plus basse que celle des contrdles et le taux sexuel change legerement en faveur des males dans toutes les generations observees. La baisse de l'oviposition, de l'eclosion des oeufs, la modification du taux sexuel en faveur des males et la persistance apparente de la sterilite sur plusieurs •Present address: Namulonge Research Station, P. O. Box 7084, Kampala, Uganda. 713 714 V. A. O. OKOTH generations contribuent a la sterilite heritee qui est un moyen potentiel de lutte contre C. partellus.

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Section: Discussionsupporting

confidence: 79%

Potential for the use of genetic methods for the control of Chilo spp.

Okoth

1990

Int. J. Trop. Insect Sci.

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“…The explanation advanced for sex-ratio distortion in tsetse flies is different from that proposed for the superficially similar distortion phenomenon in Lepidoptera (e.g. Proshold & Bartell, 1970). In Lepidoptera the males are the homogametic sex and dominant lethals induced in the X chromosomes of spermatozoa would not therefore affect the sex ratio.…”

Section: Resultsmentioning

confidence: 61%

Sex ratio distortion and semi-sterility in the progeny of irradiatedGlossina morsitans

Curtis¹,

Langley²,

Mews

et al. 1973

Genet. Res.

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Male Glossina morsitans were subjected to various doses of gamma radiation in air or nitrogen and mated to untreated females. The sex ratio of the F 1 progeny was biased towards males, and this may be explained by the extra vulnerability to dominant lethal induction that the presence of the large X chromosome gives to female determining sperms. The mean fertility of the F 1 progeny was subnormal. This was due to the induction of 50 % sterility in a large proportion of F 1 individuals. Cytogenetic examination of the progeny of outcrosses of F^ individuals indicated that in most of the semi-steriles there were translocations involving the large autosomes or the Y chromosomes. Almost all the normally fertile F ± flies gave only cytogenetically normal progeny. The F x sexratio distortion and semi-sterility would provide a ' bonus' in the application of the sterile male technique, which would amount to a 15-50% saving in the releases required to achieve a population control target compared with the requirement if the F ± was normal.

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“…Sitotroga cerealella (Olivier) Angoumois grain moth Cogburn et al 1966 Lymantriidae Lymantria dispar (L.) gypsy moth Mastro et al 1989Proshold et al 1993Proshold 1995Maksimovic 1972Mastro et al 1989Mastro 1993Strom et al 1996 Teia anartoides Walker painted apple moth Suckling et al 2002Wee et al 2005Suckling et al 2002 Helicoverpa zea (Boddie) corn earworm bollworm tomato fruitworm Carpenter et al 1987cCarpenter and Gross 1989Carpenter 1991Carpenter and Wiseman 1992aHamm and Carpenter 1997North and Snow 1978Carpenter et al 1987a, 1987b, 1989Carpenter and Gross 1993Mannion et al 1994 Heliothis virescens (F.) tobacco budworm Proshold and Bartell 1970, 1972a, 1972bGuerra and Garcia 1976North and Snow 1978 Spodoptera exigua (Hübner) beet armyworm Debolt 1973Carpenter et al 1996 Spodoptera frugiperda (J. E. Smith) fall armyworm Carpenter et al 1983, 1986, 1997Carpenter and Young 1991Arthur et al 1993Hamm and Carpenter 1997Carpenter et al 1985 Carpenter and Wiseman 1992b Plodia interpunctella (Hübner) Indian meal moth Cogburn et al 1966Ashrafi et al 1972Ashrafi and Roppel 1973Brower 1976,...…”

Section: Makee and Saour 1997mentioning

confidence: 99%