Laboratory Techniques for Determining Ploidy in Plants
نویسندگان
چکیده
منابع مشابه
Ploidy influences rarity and invasiveness in plants
1. The factors associated with plant species’ endangerment and (conversely) invasiveness are of broad interest due to their potential value in explaining the causes and consequences of population status.While most past work has focussed on ecological variables, recent work suggests that genetic attributesmay be strongly associated with plant species status. 2. We collated data on chromosome num...
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Genome duplication (polyploidy) is a recurrent evolutionary process in plants, often conferring instant reproductive isolation and thus potentially leading to speciation. Outcome of the process is often seen in the field as different cytotypes co-occur in many plant populations. Failure of meiotic reduction during gametogenesis is widely acknowledged to be the main mode of polyploid formation. ...
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This is the first of a series of units discussing the application of cytometry to plant material. Techniques commonly used for mammalian nuclei evaluation need considerable modification to be successful with plant material. David Galbraith and his colleagues bring together many years of knowledge in plant cytometry. Their unit provides detailed protocols on measuring DNA content, ploidy, and ce...
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In angiosperms, spermatozoa go by pair in each pollen grain and fertilize, in addition to the egg cell, one of its sister cells, called the central cell. This "double fertilization" leads to the embryo on the one hand and to its nutritive tissue, the endosperm, on the other hand. In addition, in most flowering plants, the endosperm is triploid because of a doubled maternal genetic contribution ...
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Sex determination is a process that leads to the physical separation of male and female gamete-producing structures to different individuals of a species. Even though sexually reproducing species have only three possible options—to relegate the two sexes to separate individuals, to keep them together on the same individual, or to have a combination of both—plants in particular display a great v...
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ژورنال
عنوان ژورنال: HortTechnology
سال: 1999
ISSN: 1063-0198,1943-7714
DOI: 10.21273/horttech.9.4.594