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báo cáo khoa học: "Enzymatic heterozygosity and morphological variance in synthetic populations of Drosophila melanogaster Gloria BLANCO LIZANA"

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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Enzymatic heterozygosity and morphological variance in synthetic populations of Drosophila melanogaster Gloria BLANCO LIZANA | Génét. Sél. Evol. 1986 18 4 417-426 Enzymatic heterozygosity and morphological variance in synthetic populations of Drosophila melanogaster Gloria BLANCO LIZANA and J.A. SANCHEZ PRADO Departamento de Genética Universidad de Oviedo Asturias Spain Summary Several reports have shown a negative correlation between allozyme heterozygosity and morphological variance and asymmetry. In this work carried out on synthetic populations of Drosophila melanogaster we have tried to find out if a relationship can be established between the variability and symmetry level of 4 morphometric characters and homozygosity for 5 enzymatic loci. Our results point to a positive correlation between morphological variability and asymmetry and homozygosis for the enzymatic loci. In addition heterozygosity of other loci also influenced developmental stability. Key words Morphological variance enzymatic polymorphism homeostasis Drosophila mela-nogaster. Resume Heterozygotie enzymatique et variance morphologique dans des populations synthétiques de Drosophila melanogaster. Plusieurs experiences montrent qu un taux élevé d heterozygotie de rindividu OU de la population est généralement associé à une faible variance morphologique et un faible degré d asymetrie. Dans ce travail realise dans des populations synthétiques de Drosophila melanogaster nous avons essayé de voir s il était possible d etablir une relation entre la variabilité et l asymétrie de 4 caractères morphométriques et le taux d homozygotie déterminé sur 5 locus enzymatiques. Nos résultats indiquent une correlation positive entre variabilité et asymétrie morphologique et taux d homozygotie determine sur les locus enzymatiques analyses. De plus le taux d homozygotie du reste du genome influe aussi sur la stabilité du développement. Mots clés Variance morphologique polymorphism enzymatique homéostasie Drosophila melanogaster. 418 G. BLANCO LIZANA J.A. SANCHEZ PRADO I. Introduction Recently a lot of data have been put forward showing that

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