منابع مشابه
Genomic in situ hybridization in plants.
Genomic in situ hybridization (GISH), which is a modification of fluorescent in situ hybridization, has been widely used in the study of plants. It has become one of the most important techniques for molecular cytogenetics. GISH is a technique that allows distinguishing the genomes in a cell. With this technique, it is possible to differentiate the genomes in a hybrid; consequently, this tool h...
متن کاملComparing metabolomes: the chemical consequences of hybridization in plants.
Hybridization may lead to unique phytochemical expression in plant individuals. Hybrids may express novel combinations or extreme concentrations of secondary metabolites or, in some cases, produce metabolites novel to both parental species. Here we test whether there is evidence for extreme metabolite expression or novelty in F1 hybrids between Senecio aquaticus and Senecio jacobaea. Hybridizat...
متن کاملThe Frequency of Hybridization in Plants and Animals
H ybridiza tion and Its Effects T HE ROLE of hybridization in evolution has been one of the most controversial topics in the whole field of evolutionary study. Some authors, particularly Lotsy (1916, 1932) and Jeffrey (1915) have assigned a dominant role to this process. Other botanists, panicularly systematists occupied chiefly with identification, classification, and the compiling of generic"...
متن کاملHybridization in Plants: Old Ideas, New Techniques[OPEN]
Hybridization has played an important role in the evolution of many lineages. With the growing availability of genomic tools and advancements in genomic analyses, it is becoming increasingly clear that gene flow between divergent taxa can generate new phenotypic diversity, allow for adaptation to novel environments, and contribute to speciation. Hybridization can have immediate phenotypic conse...
متن کاملHybridization and invasion: one of North America's most devastating invasive plants shows evidence for a history of interspecific hybridization
Hybridization has been hypothesized to influence invasion through the generation of novel phenotypes and/or increased levels of genetic variance. Based on morphology, hybrids between diffuse knapweed and spotted knapweed, two invasive plants in North America, are present in the invaded range. Some individuals within most diffuse knapweed sites in North America exhibit intermediate diffuse × spo...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1906
ISSN: 0036-8733
DOI: 10.1038/scientificamerican01061906-5a