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Genetics of Lupinus VII. Outcrossing, Autofertility, and Variability in Natural Populations of the nanus Group

James Harding, C. B. Mankinen and M. H. Elliott
Taxon
Vol. 23, No. 5/6 (Nov., 1974), pp. 729-738
DOI: 10.2307/1218434
Stable URL: http://www.jstor.org/stable/1218434
Page Count: 10
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Genetics of Lupinus VII. Outcrossing, Autofertility, and Variability in Natural Populations of the nanus Group
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Abstract

Outcrossing rates in natural populations of Lupinus nanus Dougl. have been found to vary from nearly zero to nearly 100 percent (Harding and Horovitz, 1969; Harding, 1970). These studies were based primarily on a group of northern populations of subspecies apricus (Elliott, Harding, and Mankinen; paper VI). The purposes of this paper are (1) to report estimates of outcrossing for the other subspecies of L. nanus, (2) to report estimates of outcrossing for the closely related species, L. bicolor, L. affinis, L. polycarpus, and L. pachylobus, (3) to discuss the relationship between these estimates of outcrossing and autofertility, and (4) to discuss the relationship between outcrossing and phenotypic and genotypic variability maintained in populations.

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