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- W2074071035 abstract "Hexaploid Potentilla argentea L. (s.l.) plants from twelve populations in southern Sweden were investigated with RAPD to determine the pattern of genetic variability. The ploidy level of the plants was ascertained by flow cytometry. Thirteen different RAPD band patterns (genotypes) were found among 64 plants investigated. Nine of the populations had unique band patterns, two populations shared the same, and in one population three different patterns were found among three plants. Also a small isozyme investigation detected genetic variability, again distributed primarily between populations. Analyses with RAPD of offspring derived from bagged flower-stalks and from artificial crosses between different hexaploid genotypes, showed that seeds are normally produced by apomixis. However, one hybrid offspring with a nonoploid (9x) ploidy level was found, proving that pollen produced by hexaploid P. argentea is capable of fertilization, and that sexually derived seeds can develop and mature on hexaploid plants. The broad genetic variability found in the RAPD and isozyme investigations indicates that gamete production after reduction division may also occur on the female side, though at a low frequency. Judging from its isozyme patterns, hexaploid P. argentea is an allopolyploid having diploid P. argentea as one of its parents." @default.
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- W2074071035 date "2004-05-11" @default.
- W2074071035 modified "2023-09-24" @default.
- W2074071035 title "Apomixis and Sexuality in Hexaploid Potentilla Argentea" @default.
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- W2074071035 doi "https://doi.org/10.1111/j.1601-5223.1996.00053.x" @default.
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