ABSTRACT Outcrossing rates were investigated in 20 populations of _Phlox drummondii_ using polymorphic allozyme loci. The analysis of progeny genotype arrays gave outcrossing estimates which

varied from f = 0·69 to 1·01; the mean was 0·86. The estimated outcrossing rate deviated significantly from random mating in 13 populations. The deviation was due principally to crossing

among relatives. Outcrossing rates were a weak inverse function of density. At one site the density of some subpopulations was artifically reduced; and the outcrossing rates in these

subpopulations were significantly greater than in adjacent unmanipulated subpopulations SIMILAR CONTENT BEING VIEWED BY OTHERS MATING SYSTEM AND POPULATION STRUCTURE IN THE NATURAL

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Department of Botany, University of Texas, Austin, 78713, Texas, USA Lee Watkins & Donald A Levin Authors * Lee Watkins View author publications You can also search for this author

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