TAILIEUCHUNG - Báo cáo khoa học: "Genetic variation of the Croatian beech stands (Fagus sylvatica L): spatial differentiation in connection with the environment"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài:"Genetic variation of the Croatian beech stands (Fagus sylvatica L): spatial differentiation in connection with the environment. | Ann Sci For 1991 48 15-28 Elsevier INRA 15 Original article Genetic variation of the Croatian beech stands Fagus sylvatica L spatial differentiation in connection with the environment B Comps 1 B Thiebaut 2 I Sugar 3 1 Trinajstic 4 M Plazibat 3 1 Université de Bordeaux I Departement de Biologie Vegetate Avenue des Facultes 33405 Talence Cedex 2 Centre Louis Emberger CNRS BP 5051 34033 Montpellier Cedex Institut de Botanique Université des Sciences et Techniques du Languedoc rue Auguste Broussonnet Montpellier France 3 Botanicki Zavod Fakulteta Sveucilista u Zagrebu Marulicev trg 20 11 41000 Zagreb 4 Sumarski Fakultet Simunska Cesta 4100 Zagreb Yugoslavia Received 24 April 1990 accepted 15 October 1990 Summary Thirty-five beech stands located in Croatia Yugoslavia have been analysed using 6 polymorphic enzymatic loci. Three of them PX-1 PX-2 GOT-1 seem to be more or less influenced by selection since their allelic frequencies are related to climatic conditions. The total gene diversity is higher for only 1 out of 6 loci in the continental region. Discriminant analyses on allelic frequencies show that the Mediterranean Seslerio-Fagetum which grows in rather dry conditions is an association apart and a significant difference exists between 2 groups of Mediterranean beechwoods located in the highlands and on the plain respectively. A general tendency towards a heterozygotic deficit occurs with the same significance in both regions. Multilocus F-statistics reveal that the total genotypic differentiation and its 2 components intra- and interpopulations do not differ between the 2 regions. genetic differentiation I beech population Croatia I geographic variation Resume La variation génétique des hêtraies croates Fagus sylvatica L differenciation spatiale en relation avec I environnement. Trente cinq hêtraies localisées en Croatie Yougosla-vie ont été étudiées à I aide de 6 marqueurs enzymatiques polymorphes. Trois d entre eux PX-1 PX-2 GOT-1 semblent plus OU moins soumis

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