Pseudogamy, hybridization and evolution in Potentilla
2009; BioMed Central; Volume: 87; Issue: 2 Linguagem: Inglês
10.1111/j.1601-5223.1978.tb01260.x
ISSN1601-5223
Autores Tópico(s)Plant Diversity and Evolution
ResumoHereditasVolume 87, Issue 2 p. 179-813 Open Access Pseudogamy, hybridization and evolution in Potentilla SVEN ASKER, Corresponding Author SVEN ASKER Institute of Genetics, University of Lund, SwedenInstitute of Genetics, S-223 62 Lund. SwedenSearch for more papers by this author SVEN ASKER, Corresponding Author SVEN ASKER Institute of Genetics, University of Lund, SwedenInstitute of Genetics, S-223 62 Lund. SwedenSearch for more papers by this author First published: January 1978 https://doi.org/10.1111/j.1601-5223.1978.tb01260.xCitations: 11AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Related apomicts often coexist within a biotope. Where they intercross, occasional hybrids may be formed. The designations U- and R-hybrids - from fertilized unreduced and reduced egg cells, respectively - are proposed. The more common U-hybrids may have a lower average fitness than R-hybrids. In Potentilla argentea, biotypes of different ploidy show contrasting modes of reproduction. Biotype and species hybrids sometimes appear as well as heteroploid aberrants of uncertain origin. A diploidtetraploid-diploid cycle with sexual tetraploids is known. Selection of well-adapted mutant genotypes continues where recombination is suppressed. - Some other factors important for evolution in apomictic complexes are also briefly discussed. Citing Literature Volume87, Issue2January 1978Pages 179-813 ReferencesRelatedInformation
Referência(s)