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Paternal alleles enhance female reproductive success in tropical pythons

Madsen, Thomas LU ; Ujvari, Beata LU ; Olsson, M and Shine, R (2005) In Molecular Ecology 14(6). p.1783-1787
Abstract
The conventional view that female reproductive success is unlikely to benefit from multiple mating has come under strong challenge in recent years. In the present study, we demonstrate that the time wild-caught reproductive female water pythons (Liasis fuscus) spent in the laboratory prior to oviposition affected both hatching success and the number of male microsatellite alleles detected in the broods. A negative correlation between time in captivity and number of male alleles observed in the broods suggests that reduced hatching success was most likely not caused by environmental factors such as nonoptimal temperatures, but rather by restricted mating opportunities. Maternal nutritional status and mean hatchling mass did not affect brood... (More)
The conventional view that female reproductive success is unlikely to benefit from multiple mating has come under strong challenge in recent years. In the present study, we demonstrate that the time wild-caught reproductive female water pythons (Liasis fuscus) spent in the laboratory prior to oviposition affected both hatching success and the number of male microsatellite alleles detected in the broods. A negative correlation between time in captivity and number of male alleles observed in the broods suggests that reduced hatching success was most likely not caused by environmental factors such as nonoptimal temperatures, but rather by restricted mating opportunities. Maternal nutritional status and mean hatchling mass did not affect brood viability. However, our results revealed a positive correlation between number of male microsatellite alleles observed in the broods and hatching success, suggesting that increased paternal genetic variability enhanced female reproductive success. As microsatellite loci are unlikely to be direct targets of selection, we suggest that variability at these loci may cosegregate with other polymorphic genes directly linked to fitness. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Molecular Ecology
volume
14
issue
6
pages
1783 - 1787
publisher
Wiley-Blackwell
external identifiers
  • pmid:15836649
  • wos:000228395900014
  • scopus:18244396634
ISSN
0962-1083
DOI
10.1111/j.1365-294X.2005.02505.x
language
English
LU publication?
yes
id
6ee4ea75-ae28-4233-b0e7-b3b17282791c (old id 145323)
date added to LUP
2007-06-25 15:00:06
date last changed
2017-03-19 03:25:15
@article{6ee4ea75-ae28-4233-b0e7-b3b17282791c,
  abstract     = {The conventional view that female reproductive success is unlikely to benefit from multiple mating has come under strong challenge in recent years. In the present study, we demonstrate that the time wild-caught reproductive female water pythons (Liasis fuscus) spent in the laboratory prior to oviposition affected both hatching success and the number of male microsatellite alleles detected in the broods. A negative correlation between time in captivity and number of male alleles observed in the broods suggests that reduced hatching success was most likely not caused by environmental factors such as nonoptimal temperatures, but rather by restricted mating opportunities. Maternal nutritional status and mean hatchling mass did not affect brood viability. However, our results revealed a positive correlation between number of male microsatellite alleles observed in the broods and hatching success, suggesting that increased paternal genetic variability enhanced female reproductive success. As microsatellite loci are unlikely to be direct targets of selection, we suggest that variability at these loci may cosegregate with other polymorphic genes directly linked to fitness.},
  author       = {Madsen, Thomas and Ujvari, Beata and Olsson, M and Shine, R},
  issn         = {0962-1083},
  language     = {eng},
  number       = {6},
  pages        = {1783--1787},
  publisher    = {Wiley-Blackwell},
  series       = {Molecular Ecology},
  title        = {Paternal alleles enhance female reproductive success in tropical pythons},
  url          = {http://dx.doi.org/10.1111/j.1365-294X.2005.02505.x},
  volume       = {14},
  year         = {2005},
}