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RELATIONSHIPS AMONG REPRODUCTION, GROWTH RATES, AND PROTEIN HETEROZYGOSITY IN PONDEROSA PINE
Author(s) -
Linhart Yan B.,
Mitton Jeffry B.
Publication year - 1985
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1985.tb08282.x
Subject(s) - biology , reproduction , loss of heterozygosity , population , sexual reproduction , zoology , botany , ecology , demography , genetics , allele , gene , sociology
This report summarizes a 6‐yr study of male and female cone production in a population of 216 ponderosa pines whose ages, diameters, and genotypes at 7 protein polymorphisms are known. There are different schedules of male and female reproduction. The majority of cones are produced by the same few trees each year. There is a tradeoff between growth rate and female cone production but not pollen production. Differential female (but not male) cone production is associated with protein genotype. The variance of female reproductive effort declines with increasing protein heterozygosity.