THE DEVELOPMENT OF LARVAL FORAGING BEHAVIOUR IN DROSOPHILA PAVANI, D. GAUCHA AND THEIR RECIPROCAL HYBRIDS

THE DEVELOPMENT OF LARVAL FORAGING BEHAVIOUR IN DROSOPHILA PAVANI, D. GAUCHA AND THEIR RECIPROCAL... THE DEVELOPMENT OF LARVAL FORAGING BEHAVIOUR IN DROSOPHILA PAVANI, D. GAUCHA AND THEIR RECIPROCAL HYBRIDS by FRANCISCO DEL PINO 1) and RAÚL GODOY-HERRERA 2,3,4) ( 1 Departamento de Psicología, Universidad Academia de Humanismo Cristiano; 2 Programa de Genética Humana, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 70061, Santiago-7, Chile) (Acc. 7-XII-1999) Summary The development of larval foraging behaviour in the sibling species D. pavani and D. gaucha and in their reciprocal interspeciŽ c hybrids was analysed. The goals were: (i) to identify in- terspeciŽ c differences in developmental patterns of larval behavioural organization, and (ii) to study changes in the frequency of ecologically relevant behaviours during larval ontogeny. Hybridization changed the developmental pathway of feeding and locomotor activity, sug- gesting genetic divergence for foraging behaviour between the species. Larval turning and bending were not affected by hybridization, suggesting a similar genetic architecture for each of these activities in both species. Retreat and rearing were observed during the whole of larval period in D. pavani , while these behaviours were rarely observed in D. gaucha and the hybrids, suggesting dominance of the gaucha genome over that of pavani . The behavioural organization of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

THE DEVELOPMENT OF LARVAL FORAGING BEHAVIOUR IN DROSOPHILA PAVANI, D. GAUCHA AND THEIR RECIPROCAL HYBRIDS

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Publisher
BRILL
Copyright
© 2000 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
D.O.I.
10.1163/156853900502240
Publisher site
See Article on Publisher Site

Abstract

THE DEVELOPMENT OF LARVAL FORAGING BEHAVIOUR IN DROSOPHILA PAVANI, D. GAUCHA AND THEIR RECIPROCAL HYBRIDS by FRANCISCO DEL PINO 1) and RAÚL GODOY-HERRERA 2,3,4) ( 1 Departamento de Psicología, Universidad Academia de Humanismo Cristiano; 2 Programa de Genética Humana, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 70061, Santiago-7, Chile) (Acc. 7-XII-1999) Summary The development of larval foraging behaviour in the sibling species D. pavani and D. gaucha and in their reciprocal interspeciŽ c hybrids was analysed. The goals were: (i) to identify in- terspeciŽ c differences in developmental patterns of larval behavioural organization, and (ii) to study changes in the frequency of ecologically relevant behaviours during larval ontogeny. Hybridization changed the developmental pathway of feeding and locomotor activity, sug- gesting genetic divergence for foraging behaviour between the species. Larval turning and bending were not affected by hybridization, suggesting a similar genetic architecture for each of these activities in both species. Retreat and rearing were observed during the whole of larval period in D. pavani , while these behaviours were rarely observed in D. gaucha and the hybrids, suggesting dominance of the gaucha genome over that of pavani . The behavioural organization of

Journal

BehaviourBrill

Published: Jan 1, 2000

Keywords: DEVELOPMENTAL PATHWAYS; SPECIES HYBRIDS; DROSOPHILA LARVAE; FORAGING BEHAVIOUR

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