The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis
The rate of homosexual copulation has been defined as the ratio between the number of homosexual mountings and the total number of mountings (homo and heterosexual) performed by a Tribolium castaneum male during a period of 30 min. In a laboratory population, the average rate when a number of males (m) and females (k×m) are tested together has been estimated in each of the six situations defined by m=2 and 10 and k=0.5, 1, and 2, k being the sex ratio among scored individuals. Good agreement was found between the observed rates of homosexual copulation and those expected assuming random contacts between pairs of individuals totally indiscriminate with respect to sex. The genetic properties of the trait have been investigated by means of a diallel analysis of six highly inbred lines derived from the same population and their F1 crosses. Significant general and specific combining ability effects were detected. When noninbred females were used for testing, the rate of homosexual copulation is expected to be higher for inbred than for noninbred males. This prediction, implying the existence of inbreeding depression for the trait, also was confirmed by the data. © 1991 Plenum Publishing Corporation.
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Language: | English |
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Springer Nature
1991
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Subjects: | Homosexual copulation, Diallel analysis, Tribolium castaneum, |
Online Access: | http://hdl.handle.net/20.500.12792/5481 http://hdl.handle.net/10261/295026 |
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dig-inia-es-10261-2950262023-02-20T10:44:20Z The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis Serrano, J. M. Castro, L. Toro, M. A. López-Fanjul, C. Homosexual copulation Diallel analysis Tribolium castaneum The rate of homosexual copulation has been defined as the ratio between the number of homosexual mountings and the total number of mountings (homo and heterosexual) performed by a Tribolium castaneum male during a period of 30 min. In a laboratory population, the average rate when a number of males (m) and females (k×m) are tested together has been estimated in each of the six situations defined by m=2 and 10 and k=0.5, 1, and 2, k being the sex ratio among scored individuals. Good agreement was found between the observed rates of homosexual copulation and those expected assuming random contacts between pairs of individuals totally indiscriminate with respect to sex. The genetic properties of the trait have been investigated by means of a diallel analysis of six highly inbred lines derived from the same population and their F1 crosses. Significant general and specific combining ability effects were detected. When noninbred females were used for testing, the rate of homosexual copulation is expected to be higher for inbred than for noninbred males. This prediction, implying the existence of inbreeding depression for the trait, also was confirmed by the data. © 1991 Plenum Publishing Corporation. 2023-02-20T10:44:20Z 2023-02-20T10:44:20Z 1991 journal article Behavior Genetics 21(6): 547-558 (1991) 0001-8244 http://hdl.handle.net/20.500.12792/5481 http://hdl.handle.net/10261/295026 10.1007/BF01066681 1573-3297 en none Springer Nature |
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Homosexual copulation Diallel analysis Tribolium castaneum Homosexual copulation Diallel analysis Tribolium castaneum |
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Homosexual copulation Diallel analysis Tribolium castaneum Homosexual copulation Diallel analysis Tribolium castaneum Serrano, J. M. Castro, L. Toro, M. A. López-Fanjul, C. The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
description |
The rate of homosexual copulation has been defined as the ratio between the number of homosexual mountings and the total number of mountings (homo and heterosexual) performed by a Tribolium castaneum male during a period of 30 min. In a laboratory population, the average rate when a number of males (m) and females (k×m) are tested together has been estimated in each of the six situations defined by m=2 and 10 and k=0.5, 1, and 2, k being the sex ratio among scored individuals. Good agreement was found between the observed rates of homosexual copulation and those expected assuming random contacts between pairs of individuals totally indiscriminate with respect to sex. The genetic properties of the trait have been investigated by means of a diallel analysis of six highly inbred lines derived from the same population and their F1 crosses. Significant general and specific combining ability effects were detected. When noninbred females were used for testing, the rate of homosexual copulation is expected to be higher for inbred than for noninbred males. This prediction, implying the existence of inbreeding depression for the trait, also was confirmed by the data. © 1991 Plenum Publishing Corporation. |
format |
journal article |
topic_facet |
Homosexual copulation Diallel analysis Tribolium castaneum |
author |
Serrano, J. M. Castro, L. Toro, M. A. López-Fanjul, C. |
author_facet |
Serrano, J. M. Castro, L. Toro, M. A. López-Fanjul, C. |
author_sort |
Serrano, J. M. |
title |
The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
title_short |
The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
title_full |
The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
title_fullStr |
The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
title_full_unstemmed |
The genetic properties of homosexual copulation behavior in Tribolium castaneum Diallel analysis |
title_sort |
genetic properties of homosexual copulation behavior in tribolium castaneum diallel analysis |
publisher |
Springer Nature |
publishDate |
1991 |
url |
http://hdl.handle.net/20.500.12792/5481 http://hdl.handle.net/10261/295026 |
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