AN INVESTIGATION OF PUTATIVE TRAGOPOGON MIRUS (ASTERACEAE) POPULATIONS IN OREGON, USA
نویسندگان
چکیده
منابع مشابه
Rapid Chromosome Evolution in Recently Formed Polyploids in Tragopogon (Asteraceae)
BACKGROUND Polyploidy, frequently termed "whole genome duplication", is a major force in the evolution of many eukaryotes. Indeed, most angiosperm species have undergone at least one round of polyploidy in their evolutionary history. Despite enormous progress in our understanding of many aspects of polyploidy, we essentially have no information about the role of chromosome divergence in the est...
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چکیده ندارد.
15 صفحه اولNatural hybrids between Tragopogon mirus and T. miscellus (Asteraceae): a new perspective on karyotypic changes following hybridization at the polyploid level.
UNLABELLED PREMISE OF THE STUDY Natural hybrids have formed in Pullman, Washington, United States between the recently formed allotetraploids Tragopogon miscellus and T. mirus. In addition to forming spontaneously, these hybrids are semifertile, propagating via achenes. Previous work indicated that the tetraploid hybrids have genetic contributions from three progenitor diploids: T. dubius, T...
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ژورنال
عنوان ژورنال: Madroño
سال: 2005
ISSN: 0024-9637
DOI: 10.3120/0024-9637(2005)52[35:aioptm]2.0.co;2