作者: V. F. Semikhov , L. P. Aref'eva , O. A. Novozhilova , A. S. Timoshchenko , D. S. Kostrikin
关键词: Biology 、 Morphology (biology) 、 Phylogenetic tree 、 Biochemistry 、 Anatomy 、 Amino acid composition 、 Taxales 、 Taxon 、 Degree of similarity 、 Ultrastructure
摘要: The morphology of female reproductive organs and anatomy, ultrastructure, ultrasculpture seed integuments were studied in more than 150 species Podocarpales, Cephalotaxales, Taxales. main trends morphological-evolutionary transformations fructifications established three groups gymnosperms. taxonomic weight structural features the Taxales was determined. Seeds 20 these orders investigated using amino acid Western blot analysis. index remoteness from least specialized hypothetical taxon degree difference between taxa calculated data on composition seeds embryos. differences similarity Podocarpales other gymnosperms demonstrated. An original concept proposed for phylogenetic relations