The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum
Inbreeding was carried out to investigate the genetic properties of fecundity and viability (early and late) in a population of Tribolium castaneum. Heritability estimates in the base population were intermediate for fecundity and small and nonsignificant for viability. All traits showed strong inbreeding depression. For both viability traits, a significant increase of both within-line additive variance and between-line variance was observed with inbreeding. For fecundity, however, these changes were not detected. The results are compatible with the genetic variance of viability in the base population being generated by segregation of a number of deleterious recessive alleles at low frequencies. For fecundity, an additional class of loci with substantial additive effects must be postulated. © 1995 The Genetical Society of Great Britain.
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Format: | artículo biblioteca |
Language: | English |
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Springer Nature
1995
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Subjects: | Artificial selection, Fecundity, Genetic variance, Inbreeding, Tribolium castaneum, Viability, |
Online Access: | http://hdl.handle.net/20.500.12792/1309 http://hdl.handle.net/10261/292499 |
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dig-inia-es-10261-2924992023-02-20T07:29:36Z The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum Fernández, A. Toro, M. A. López-Fanjul, C. Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability Inbreeding was carried out to investigate the genetic properties of fecundity and viability (early and late) in a population of Tribolium castaneum. Heritability estimates in the base population were intermediate for fecundity and small and nonsignificant for viability. All traits showed strong inbreeding depression. For both viability traits, a significant increase of both within-line additive variance and between-line variance was observed with inbreeding. For fecundity, however, these changes were not detected. The results are compatible with the genetic variance of viability in the base population being generated by segregation of a number of deleterious recessive alleles at low frequencies. For fecundity, an additional class of loci with substantial additive effects must be postulated. © 1995 The Genetical Society of Great Britain. 2023-02-20T07:29:36Z 2023-02-20T07:29:36Z 1995 artículo Heredity 75: 376-381 (1995) 0018-067X http://hdl.handle.net/20.500.12792/1309 http://hdl.handle.net/10261/292499 10.1038/hdy.1995.149 1365-2540 en none Springer Nature |
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Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability |
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Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability Fernández, A. Toro, M. A. López-Fanjul, C. The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
description |
Inbreeding was carried out to investigate the genetic properties of fecundity and viability (early and late) in a population of Tribolium castaneum. Heritability estimates in the base population were intermediate for fecundity and small and nonsignificant for viability. All traits showed strong inbreeding depression. For both viability traits, a significant increase of both within-line additive variance and between-line variance was observed with inbreeding. For fecundity, however, these changes were not detected. The results are compatible with the genetic variance of viability in the base population being generated by segregation of a number of deleterious recessive alleles at low frequencies. For fecundity, an additional class of loci with substantial additive effects must be postulated. © 1995 The Genetical Society of Great Britain. |
format |
artículo |
topic_facet |
Artificial selection Fecundity Genetic variance Inbreeding Tribolium castaneum Viability |
author |
Fernández, A. Toro, M. A. López-Fanjul, C. |
author_facet |
Fernández, A. Toro, M. A. López-Fanjul, C. |
author_sort |
Fernández, A. |
title |
The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
title_short |
The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
title_full |
The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
title_fullStr |
The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
title_full_unstemmed |
The effect of inbreeding on the redistribution of genetic variance of fecundity and viability in Tribolium castaneum |
title_sort |
effect of inbreeding on the redistribution of genetic variance of fecundity and viability in tribolium castaneum |
publisher |
Springer Nature |
publishDate |
1995 |
url |
http://hdl.handle.net/20.500.12792/1309 http://hdl.handle.net/10261/292499 |
work_keys_str_mv |
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