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1980
The green algae and the charophytes represent the most widely studied groups of algae in respect to their ploidy levels. In some genera increased size accompanies ploidy level changes as well as certain morphological modifications, but in other genera no evident obvious changes can be discerned.
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The green algae and the charophytes represent the most widely studied groups of algae in respect to their ploidy levels. In some genera increased size accompanies ploidy level changes as well as certain morphological modifications, but in other genera no evident obvious changes can be discerned.
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1980
Since Polyploidy has been recognized as a widespread and common phenomenon among eukaryotes, particularly higher plants, biologists have been interested in possible causal connections between Polyploidy and distribution, and have tried to present relevant generalizations and “rules.” A quick historical survey of this topic takes us back to the first ...
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Since Polyploidy has been recognized as a widespread and common phenomenon among eukaryotes, particularly higher plants, biologists have been interested in possible causal connections between Polyploidy and distribution, and have tried to present relevant generalizations and “rules.” A quick historical survey of this topic takes us back to the first ...
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1980
There is evidence supporting a concept of polyploid evolution in a number of groups of fungi. These typically have dominant diploid phases in their life-histories. There are a number of reports of suspected polyploidy in other fungi, but these should be considered speculative at this time.
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There is evidence supporting a concept of polyploid evolution in a number of groups of fungi. These typically have dominant diploid phases in their life-histories. There are a number of reports of suspected polyploidy in other fungi, but these should be considered speculative at this time.
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1980
A discussion in gymnosperms as a group is somewhat meaningless so far as discerning trends or ascertaining general principles. It is now generally recognized (1, 2) that g3niinosperms as a class probably never existed, and that gymnospermy should be regarded as a way of life rather than suggesting that the plants possessing naked seeds are somehow ...
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A discussion in gymnosperms as a group is somewhat meaningless so far as discerning trends or ascertaining general principles. It is now generally recognized (1, 2) that g3niinosperms as a class probably never existed, and that gymnospermy should be regarded as a way of life rather than suggesting that the plants possessing naked seeds are somehow ...
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Polyploidy in Species Populations
1980Polyploidy in populations of well-differentiated plant species is now widely recognized (1,2). Most reports, however, are limited to a few individuals from one or several populations and thereby illustrate only a fraction of the extant genomic diversity in most species.
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