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Adaptive significance of changes in morph production during the transition from parthenogenetic to sexual reproduction in the aphid Rhopalosiphum padi (Homoptera: Aphididae)

Published online by Cambridge University Press:  10 July 2009

A.B.M. Austin*
Affiliation:
Department of Pure and Applied Biology, University of Leeds, UK
G.M. Tatchell
Affiliation:
Department of Entomology and Nematology, Rothamsted Experimental Station, Harpenden, UK
R. Harrington
Affiliation:
Department of Entomology and Nematology, Rothamsted Experimental Station, Harpenden, UK
J.S. Bale
Affiliation:
Department of Pure and Applied Biology, University of Leeds, UK
*
Dr A.B.M. Austin, School of Biological Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.

Abstract

Many aphid species have life cycles which alternate between asexual reproduction during spring and summer and sexual reproduction in autumn. This paper describes the sequences of morphs produced by clones of Rhopalosiphum padi (Linnaeus) in response to a range of photoperiods and temperatures in the laboratory, and under semi-natural conditions at the time of year when the transition from parthenogenetic to sexual reproduction occurs. By using similarities in the order in which the various morphs were born, clones of R. padi were found to produce eight progeny sequence types. A clone of R. padi will produce these sequence types sequentially as it changes from parthenogenetic to fully sexual reproduction. The progeny sequence produced by clones under conditions corresponding to those of spring and summer consist of parthenogenetic females only. During late summer, production of parthenogenetic females is followed by males. Later in the year, a clone produces progeny sequences consisting of parthenogenetic females, gynoparae and males. The asexual phase of reproduction is terminated in late autumn when only gynoparae and males are born. A minority of clones terminate parthenogenetic reproduction by producing only gynoparae. The function of these changes in progeny sequence in maximizing the reproductive success of a clone of R. padi is discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1996

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References

Anon (1975) Maps of mean and extreme temperature over the United Kingdom 1941–1970. Climatological Memorandum No. 73. 56 pp. Bracknell, UK, Meteorological Office.Google Scholar
Aoki, S. (1977) Colophina clematis (Homoptera: Pemphigidae), an aphid species with “soldiers”. Kontyu 45, 276282.Google Scholar
Austin, A.B.M. (1992) Regional variation in the timing of sexual morph production in the aphid Rhopahsiphum padi (L.). 156 pp. PhD thesis, University of Leeds.Google Scholar
Austin, A.B.M., Tatchell, G.M., Harrington, R. & Bale, J.S. (1991) A method for rearing cereal aphids in a small space. Entomologia Experimentalis et Applicata 61, 9193.CrossRefGoogle Scholar
Blackman, R.L. (1975a) Aphids. 175 pp. Aylesbury, Ginn & Co.Google Scholar
Blackman, R.L. (1975b) Photoperiodic determination of the male and female sexual morphs of Myzus persicae. Journal of Insect Physiology 21, 435453.CrossRefGoogle Scholar
Blackman, R.L. (1980) Chromosomes and parthenogenesis in aphids. pp. 133148in Blackman, R.L., Hewitt, G.M. & Ashburner, M. (Eds) Insect cytogenetics. Oxford, Blackwell Scientific Publications, (symposium of the Royal Entomological Society of London No. 10).Google Scholar
Blackman, R.L. (1981) Species, sex and parthenogenesis in aphids pp. 7585in Forey, P.L. (Ed.) The evolving biosphere, chance, change and challenge. British Museum, Cambridge University Press.Google Scholar
Bonnemaison, L. (1951) Contribution a l'etude des facteurs provoquant l'apparition des formes aliess et sexuees chez les Aphidinae. Annales des Épiphyties 2, 1380.Google Scholar
Carter, N., Mclean, I.F.G., Watt, A.D. & Dixon, A.F.G. (1980) Cereal aphids: a case study and review. Applied Biology 5, 271348.Google Scholar
Dixon, A.F.G. (1971) The life cycle and host preferences of the bird cherry–oat aphid Rhopahsiphum padi L., and their bearing on the theories of host alternation in aphids. Annals of Applied Biology 68, 135147.CrossRefGoogle ScholarPubMed
Dixon, A.F.G. (1973) Biology of aphids. 58 pp. London, Edward Arnold.Google Scholar
Dixon, A.F.G. (1976) Reproductive strategies of the alate morphs of the bird cherry–oat aphid Rhopalosiphum padi (L.). Journal of Animal Ecology 45, 817830.CrossRefGoogle Scholar
Dixon, A.F.G. & Dewar, A.M. (1974) The time of determination of the gynoparae and males in the bird cherry–oat aphid, Rhopalosiphum padi. Annals of Applied Biology 78, 16.CrossRefGoogle ScholarPubMed
Dixon, A.F.G. & Glen, D.M. (1971) Morph Determination in the Bird Cherry—Oat Aphid, Rhopalosiphum Padi L. Annals of Applied Biology 68, 1121.CrossRefGoogle Scholar
Eckert, W.J. & Clemence, G.M. (1946) Tables of sunrise, sunset and twilight. 196 pp. Washington DC, United States Naval Observatory.Google Scholar
Hamilton, W.A.D. (1964) The genetical evolution of social behaviour. I & II. Journal of Theoretical Biology 7, 152.CrossRefGoogle ScholarPubMed
Janzen, D.H. (1977) What are dandelions and aphids? American Naturalist 111, 586589.CrossRefGoogle Scholar
Lamb, R.J. & Pointing, P.J. (1972) Sexual morph determination in the aphid Acyrthosiphon pisum. Journal of Insect Physiology 18, 2092–2042.CrossRefGoogle Scholar
Leather, S.R. (1980) Aspects of the ecology of the bird cherry-oat aphid Rhopalosiphum padi L. 186 pp. PhD Thesis, University of East Anglia, Norwich, England.CrossRefGoogle Scholar
Leather, S.R. (1982) Do gynoparae and males need to feed? An attempt to allocate resources in the bird cherry–oat aphid Rhopalosiphum padi. Entomologia Experimentalis et Applicata 31, 386390.CrossRefGoogle Scholar
Leather, S.R. (1988) Insects on bird cherry 2. The bird cherry–oat aphid Rhopalosiphum padi (L.). (Homoptera: Aphididae). Entomologist's Gazette 39, 8997.Google Scholar
Lees, A.D. (1959) The role of photoperiod and temperature in the determination of parthenogenetic and sexual forms in the aphid Megoura viciae Buckton – 1. The influence of these factors on apterous virginoparae and their progeny. Journal of Insect Physiology 3, 92117.CrossRefGoogle Scholar
Lees, A.D. (1989) The photoperiodic responses and phenology of an English strain of the pea aphid Acyrthosiphum pisum. Ecological Entomology 14, 6978.CrossRefGoogle Scholar
MacKay, P.A. (1987) Production of asexual and sexual morphs and changes in reproductive sequence associated with photoperiod in the pea aphid Acyrhtosiphon pisum (Harris). Canadian Journal of Zoology 65, 26022606.CrossRefGoogle Scholar
McAllister, M.K. & Roitberg, B.D. (1987) Adaptive suicidal behaviour in pea aphids. Nature 328, 797799.CrossRefGoogle Scholar
McAllister, M.K., Roitberg, B.D. & Weldon, K.L. (1990) Adaptive suicide in pea aphids: decisions are cost sensitive. Animal behaviour 40, 167175.CrossRefGoogle Scholar
Matsuka, M. & Mittler, T.E. (1979) Production of males and gynoparae by apterous viviparae of Myzus persicae continuously exposed to different scotoperiods. journal of Insect Physiology 25, 587593.CrossRefGoogle Scholar
Rogerson, J.P. (1947) The oat–bird cherry aphis, Rhopalosiphum padi L. and comparison with R. cratagellum, Theo. (Hemiptera: Aphididae). Bulletin of Entomological Research 38, 157176.CrossRefGoogle Scholar
Tatchell, G.M., Plumb, R.T. & Carter, N. (1988) Migration of the alate morphs of the bird cherry aphid (Rhopalosiphum padi) and implications for the epidemiology of barley yellow dwarf virus. Annals of Applied Biology 112, 111.CrossRefGoogle Scholar
Tatchell, G.M. & Parker, S.J. (1990) Host plant selection by migrant Rhopalosiphum padi in autumn and occurrence of an intermediate morph. Entomologia Experimentalis et Applicata 54, 237244.CrossRefGoogle Scholar
Taylor, M.S., Tatchell, G.M. & Clark, S.J. (1994) Morph identification in natural populations of alate female bird cherry aphids, Rhopalosiphum padi L, by multivariate methods. Annals of Applied Biology 125, 111.CrossRefGoogle Scholar
Ward, S.A., Leather, S.R. & Dixon, A.F.G. (1984) Temperature prediction and the timing of sex in aphids. Oecologia 62, 230233.CrossRefGoogle ScholarPubMed