Population genetics and speciation in the plant genus Silene (section Elisanthe).

摘要: This thesis is concerned with speciation and population genetics in the plant genus Silene (section Elisanthe). The introductory chapter a literature review covering characteristics of species studied, current on their evolutionary dynamics genetics. second third chapters cover techniques used all experiments, such as DNA extraction, sequencing genotyping protocols, explain rationale behind initial experimental design. fourth focuses multi-locus analysis autosomal gene sequences from S. latifolia dioica. relationship between two was investigated using various analyses isolation modeling admixture providing estimates distance extent historical flow. maintenance despite frequent hybridization at present-day hybrid zones discussed. fifth discusses diclinis, rare endemic found only Valencia, Spain. nature structuring history this were multilocus approach incorporating individuals diclinis populations. causes restricted distribution low size discussed concluding how evolved common ancestor amidst changing climatic environmental conditions.