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Twenty-one different caprine and 13 ovine MHC-DRB exon 2 sequences were determined including part of the adjacent introns containing simple repetitive (gt)n(ga)m elements. The positions for highly polymorphic DRB amino acids vary slightly among ungulates and other mammals. From man and mouse to ungulates the basic (gt)n(ga)m structure is fixed in evolution(More)
One of the most interesting aspects of the mating system of pied flycatchers is the regular occurrence of polygyny. Here we present data on the reproductive success of polygynously paired pied flycatcher males compared to monogamous males based on paternity analyses through DNA fingerprinting. Males paired with two females suffered a higher loss in(More)
In the context of developing a noninvasive, practicable method for population size estimation in wild boar, we present a stepwise procedure to reduce the number of required microsatellite markers for individual genotyping. Step1: an initial marker set of 12 microsatellite loci was tested for species specificity with nontarget DNA and resulted in an(More)
In the majority of socially monogamous bird species, females have offspring sired by males other than their social mate as the result of extra-pair copulations. While it is widely recognised that there is considerable variation in the frequency of extra-pair paternity between species, between populations of a species and between individuals of a population,(More)
Comparison of a cohort of 988 offspring exposed in utero to exogenous progestins with a matched cohort of unexposed offspring did not result in detection of an association of congenital anomalies with exposure. The conclusions are based primarily on outcomes of pregnancy with exposure to progesterone and 17 alpha-hydroxyprogesterone caproate, and may not(More)
The study deals with the occurrence of extra-pair copulations within a Pied Flycatcher population near Lingen/Emsland (52.27° N, 7.15 ° E) in northern Germany. As a whole, 31 Pied Flycatcher broods were investigated using oligonucleotide DNA finger-printing. In 4 broods (12.9 %) a sum of 9 nestlings were found to be due to extra-pair copulations of the(More)
In unserem Untersuchungsgebiet bei Lingen, NW Niedersachsen hatte 1995 fast jedges dritte Trauerschnäpper-♀ ein polygames ♂ zum Partner, wobei der polygame Verpaarungsstatus des ♂ daran erkannt wurde, daß es in zwei — und in einem Fall sogar in drei — Bruthöhlen Junge fütterte (Bigynie bzw. Trigynie). Mit Hilfe molekularbiologischer Methoden(More)
In Pied flycatchers (Ficedula hypoleuca) unusually large clutches containing nine eggs were found regularly. Two alternative hypotheses may explain this phenomenon: Either a single female has produced such an unusually large clutch alone or two females paired with a monoterritorial bigyneous male have laid in sum nine eggs. Here we report about our results(More)
Twenty-one different caprine and 13 ovine MHC-DRB exon 2 sequences were determined including part of the adjacent introns containing simple repetitive (gt)n(ga)m elements. The positions for highly polymorphic DRB amino acids vary slightly among ungulates and other mammals. From man and mouse to ungulates the basic (gt)n(ga)m structure is fixed in evolution(More)
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