Wyniki wyszukiwania

1

Are biochemical-genetic variation and mating systems related in large mammals?

100%

Apollonio M., Hartl G. B.

Acta Theriologica. Supplement

|

1993

|

tom 38

|

nr 2

In some families of large mammals (Cervidae, Bovidae, Canidae), we examined relationships between the various mating systems adopted and biochemical-genetic variation measured in terms of the mean proportion of polymorphic loci (P), mean heterozygosity (H) and derived coefficients, such as the ratio Pt:P and FIS. Our hypothesis was that genetic variability decreases as the degree of polygyny of the mating system adopted increases. Most of the data were in accordance with this prediction, but also some ambiguous results could be observed. Methodological and practical difficulties connected with our synoptical approach, such as the lack of comparability among most electrophoretic studies and the general scarcity of quantitative behavioural data are critically discussed.

2

Genetic variability in goitred gazelle Gazella subgutturosa subgutturosa: allozymes and karyotypes

100%

Schreiber A., Von Hegel G.

Acta Theriologica

|

1999

|

tom 44

|

nr 1

The electrophoretic polymorphism of blood proteins, and karyotypes, were studied in up to 33 captive-bred Persian goitred gazelles Gazella s. subgutturosa (Giildenstaedt, 1780). Allozymes, haemoglobins and serum proteins representing 33 putative genetic loci displayed four biallelic polymorphisms (carbonic anhydrase, malate dehydrogenase, mannose phosphate isomerase, transferrin), resulting in a percentage polymorphism of p = 0.121, and an expected heterozygosity of He = 0.047. Six males had 2n = 31, and seven females 2n = 30 chromosomes. This sex-specific difference was due to an X-autosomal translocation, coupled with a XYiYz sex determining system in males. Neither karyotypes nor protein polymorphism provided evidence to explain the high mortality of newborn goitred gazelles.

3

Biochemical genetic description of German and Swiss populations of red deer Cervus elaphus

67%

Strohlein H., Herzog S., Hecht W., Herzog A.

Acta Theriologica. Supplement

|

1993

|

tom 38

|

nr 2

A total of 228 red deer Ceruus elaphus Linnaeus, 1758 from 5 sampling sites in Germany and 2 sampling sites in Switzerland were analysed for allozyme variability by means of various electrophoretic techniques. Based on 26 presumptive structural loci scored, the proportion of polymorphic loci (P) ranged from 3.8% to 11.5%, and average heterozygosity (H) varied between 0.8% and 2%. These values are among the lowest ones as yet detected in population genetic studies of red deer. A correlation between genetic and geographic distances could be demonstrated and significant allele frequency differences were observed, especially between the German and the Swiss populations examined. Levels of relative genetic differentiation (Gst) among populations in Germany and Switzerland were low and amounted to 3.9% and 1.5%, respectively. When compared with all other German samples, a private allele at the Mpi-1 locus and remarkably different allelic frequencies at the Sod-2 locus were detected in the game preserve Reinhardswald. These findings were interpreted to result from a release of Hungarian and Hungarian x Yugoslavian red deer in the 1980s.

4

Electrophoretic variation in Coregonus sp. juveniles reared on two artificial diets

59%

Brzuzan P., Poczyczynski P., Mamcarz A., Dostatni D., Kozlowski J.

Acta Academiae Agriculturae ac Technicae Olstenensis. Protectio Aquarum et Piscatoria

|

1996

|

tom 22

51-58

Ograniczanie wyników

2 Acta Theriologica. Supplement

1 Acta Academiae Agriculturae ac Technicae Olstenensis. Protectio Aquarum et Piscatoria

1 Acta Theriologica

1 Apollonio M.

1 Brzuzan P.

1 Dostatni D.

1 Hartl G. B.

1 Hecht W.

1 Herzog A.

1 Herzog S.

1 Kozlowski J.

1 Mamcarz A.

1 Poczyczynski P.

1 Schreiber A.

1 Strohlein H.

1 Von Hegel G.

1 1999

1 1996

2 1993

Are biochemical-genetic variation and mating systems related in large mammals?

Genetic variability in goitred gazelle Gazella subgutturosa subgutturosa: allozymes and karyotypes

Biochemical genetic description of German and Swiss populations of red deer Cervus elaphus

Electrophoretic variation in Coregonus sp. juveniles reared on two artificial diets