Genetic Diversity and the Mating System in Pinus Engelmannii Carr

Adams alleles allozyme variation American pines analysis appear areas average breeding Brown characteristics Chihuahua Clausen Coetzee collection cone conifers Conkle differentiation distribution Durango Durango Durango Durango ecological effective Eguiluz electrophoresis elevation enzyme estimates et al Evolution examine expected factors forest trees gene frequencies Genetic diversity genetic identity genetic structure genetic variation genotypes geographic Guries Hamrick heterogeneity heterozygosity inbreeding indicate individuals influence Isozymes Ledig less levels levels of genetic locus lower mating system mean Mexican Mexico Mitton Muona natural populations North noted observed occurs outcrossing rates patterns Perry pine Pinus Pinus engelmannii populations Plant pollen polymorphic loci ponderosa Population Genetics population structure Proc production programs provenance range regard region relationships relative reported result sampled seed selection Serv showed significant similar South species stands suggest Table tests tree improvement values variability varied wide zones