Parasexual Interspecific Plant Hybridization
نویسندگان
چکیده
منابع مشابه
On interspecific hybridization in Ostrea.
Science, a weekly journal founded in 1880, is published each Friday by the American Association for the Advancement of Science at the Business Press, 10 McGovern Ave., Lancaster, Pa. Editorial and Advertising Offices, 1515 Massachusetts=Ave., N.W., Washington 5, D. C. Telephone, Executive 6060. Cable address, SCIMAG, Washington, D. C. Entered as second-class matter at the Post Office at Lancast...
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The pines and other groups of temperate forest trees often fail to conform to widely accepted principles of plant evolution that are based primarily on observations of herbaceous plants. For example, interpreters of plant evolution tend to equate the fertility or sterility of inter specific hybrids with the magnitude of the genetically controlled reproductive barriers limiting the production of...
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Several authors have postulated that genetic divergence between populations could result in genomic incompatibilities that would cause an increase in transposition in their hybrids, producing secondary effects such as sterility and therefore starting a speciation process. It has been demonstrated that transposition largely depends on intraspecific hybridization for P, hobo, and I elements in Dr...
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Natural interspecific hybridization between Gunnera bracteata and G. peltata (Gunneraceae) in the Juan Fernandez Islands, Chile, is analyzed morphologically and chemically. Parental types from isolated populations were compared with parents and intermediates occurring together in Quebrada Villagra on Masatierra. Two transects were made in that area, one in a relatively undisturbed site, and ano...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1972
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.69.8.2292