Inbreeding in three-spined sticklebacks (Gasterosteus aculeatusL.): effects on testis and sperm traits
نویسندگان
چکیده
منابع مشابه
Inbreeding in three-spined sticklebacks (Gasterosteus aculeatus L.): effects on testis and sperm traits
Mating between relatives often results in inbreeding depression, and is assumed to have a strong effect on fitness traits such as fertility and gonad/gamete quality. However, data concerning this topic are contradictory and particularly scarce in fishes. Three-spined sticklebacks (Gasterosteus aculeatus L.) show inbreeding depression in fertilization and hatching success, survival rates, body s...
متن کاملMale reproductive traits of full-sibs of different age classes in three-spined sticklebacks (Gasterosteus)
The process of ageing is associated with negative effects of mutations acting late in life, which range from those affecting cells to those affecting the whole organism. In many animal taxa, the deterioration of the phenotype with age also affects traits such as males’ primary and secondary sexual characteristics. In three-spined sticklebacks (Gasterosteus aculeatus), males usually reproduce at...
متن کاملMale reproductive traits of full-sibs of different age classes in three-spined sticklebacks (Gasterosteus aculeatus)
The process of ageing is associated with negative effects of mutations acting late in life, which range from those affecting cells to those affecting the whole organism. In many animal taxa, the deterioration of the phenotype with age also affects traits such as males' primary and secondary sexual characteristics. In three-spined sticklebacks (Gasterosteus aculeatus), males usually reproduce at...
متن کاملIdentification of Major and Minor QTL for Ecologically Important Morphological Traits in Three-Spined Sticklebacks (Gasterosteus aculeatus)
Quantitative trait locus (QTL) mapping studies of Pacific three-spined sticklebacks (Gasterosteus aculeatus) have uncovered several genomic regions controlling variability in different morphological traits, but QTL studies of Atlantic sticklebacks are lacking. We mapped QTL for 40 morphological traits, including body size, body shape, and body armor, in a F2 full-sib cross between northern Euro...
متن کاملAndrogen feedback effects on LH and FSH, and photoperiodic control of reproduction in male three-spined sticklebacks, Gasterosteus aculeatus.
Sexual maturation in the stickleback is controlled by photoperiod. The aim of this study was to find out whether changes in feedback effects exerted by sex steroids could mediate the photoperiodic effect, which is regarded to be of an all-or-nothing character. To that end, males were castrated and treated with different doses of testosterone (T) and in one experiment also with the aromatase inh...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 2012
ISSN: 0024-4066
DOI: 10.1111/j.1095-8312.2012.01950.x