Sökning: "quantitative genetic"

Visar resultat 11 - 15 av 298 avhandlingar innehållade orden quantitative genetic.

1. 11. Characterisation of social behaviour in red junglefowl and White leghorn laying hens : phenotypic and genetic studies

   Författare :Johanna Väisänen; Harry Blokhuis; Linköpings universitet; []
   Nyckelord :Red junglefowl; social behaviour; behaviour tests; NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : The objective of this thesis was, by using two model strains of chicken, red junglefowl and White Leghorn layer, to study differences in social behaviour of the species that could be derived from domestication and production related selection processes. The social phenotype characterisation was done to be able to further study the association of the social differences to specific production related traits as well as to certain genome areas in intercross and backcross lines generated from these two parental populations. LÄS MER

3. 12. CYTOGENETIC AND MOLECULAR GENETIC CHARACTERIZATION OF LIPOMAS

   Författare :Hammurabi Bartuma; Avdelningen för klinisk genetik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; soft tissue tumors; adipocytic tumors; conventional lipomas; spindle cell lipoma; HMGA2; cytogenetic; molecular genetic; SNP array; GGE;

   Sammanfattning : The focus of this thesis was to study cytogenetic and molecular genetic aberrations in lipomas. For this purpose, chromosome banding analysis, fluorescence in situ hybridization (FISH), as well as high resolution single nucleotide polymorphism (SNP)–arrays were used to identify recurrent chromosomal aberrations in lipomas. LÄS MER

4. 13. Investigating genetic factors behind the decline of a threatened plant species – Tephroseris integrifolia (Asteraceae)

   Författare :Kerstin Isaksson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantitative genetics.; AFLP; local genetic variation; relict populations; fragmentation; small populations; sporophytic self-incompatibility; extinction; threatened species; Inbreeding depression; population structure;

   Sammanfattning : Landscape change in Europe has caused the decline of many grassland species. Tephroseris integrifolia (Asteraceae) is one species which has declined rapidly in Sweden since the 19th century. LÄS MER

5. 14. Sex Chromosome Evolution in a Hermaphrodite : Genetic and phenotypic relationships between sex roles

   Författare :Anna Nordén; Evolutionär ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Sex chromosome evolution; Hermaphrodite; Inter-sexual genetic correlation; Quantitative genetics; Macrostomum lignano; Experimental evolution; Sexual conflict;

   Sammanfattning : Sex chromosome evolution in a hermaphrodite ancestor starts with the establishment of a sex-determining region (SDR). Over time, sex-specific genes, and/or sexually antagonistic alleles will become linked to the SDR. LÄS MER

7. 15. Coronary heart disease in Swedish twins : quantitative genetic studies

   Författare :Slobodan Zdravkovic; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Coronary heart disease; angina pectoris; acute myocardial infarction; twins; heritability; liability; frailty;

   Sammanfattning : To this point in time, coronary heart disease (CHD) has been a major cause of morbidity and mortality in the industrialized part of the world. During the last decades a decrease in morbidity and mortality has been observed in the developed countries. LÄS MER