Floral Evolution in Viola
نویسندگان
چکیده
منابع مشابه
Evolution of floral symmetry
Flowers can be classified into two basic types according to their symmetry: regular flowers have more than one plane of symmetry and irregular flowers have only a single plane of symmetry. The irregular condition is thought to have evolved many times independently from the regular one: most commonly through the appearance of asymmetry along the dorso-ventral axis of the flower. In most cases, t...
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Flowers exhibit tremendous variation in size (>1000-fold), ranging from less than a millimeter to nearly a meter in diameter. Numerous studies have established the importance of increased floral size in species that exhibit relatively normal-sized flowers, but few studies have examined the evolution of floral size increase in species with extremely large flowers or flower-like inflorescences (c...
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Genetic and molecular analyses in two eudicot plants, Hong Ma* and Claude dePamphilis Department of Biology and Arabidopsis thaliana and Antirrhinum majus, have idenThe Life Sciences Consortium tified several genes that specify floral organ identity. Penn State University These studies led to the proposal of the ABC model University Park, Pennsylvania 16802 (Coen and Meyerowitz, 1991; Ma, 1994)...
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The diversity of floral forms in nature can be explained largely as adaptations to the diversity of biotic and abiotic selective agents with which different plant species interact. Ecological genetics is the study of the process of adaptation, and therefore is an ideal approach to understanding floral adaptations. Here I review work on selection and genetic variance and covariance of floral tra...
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ژورنال
عنوان ژورنال: Annals of the Missouri Botanical Garden
سال: 1974
ISSN: 0026-6493
DOI: 10.2307/2395029