Mating systems and spontaneous mutation rates for chlorophyll-deficiency in populations of the mangrove Kandelia candel

The frequency of Kanrielia candel (L.) Druce trees heterozygous for chlorophyll-deficient alleles was surveyed for two populations along the coast of Fujian Province, China. Frequencies of heterozygotes were 1.17% for the Fugong population and 1.77% for the Zhuta population. Mutation rates for chlorophyll-deficiency in the Fugong and Zhuta populations were essentially identical (0.0012 and 0.0011 per genome per generation, respectively). Selfing rate was estimated by comparing the segregation ratio of green to chlorophyll-deficient embryos with the expected 3:1 ratio. Individual selling rate was negatively related with family size, anti the weighted mean value was 0.176.