Comparison of Reproductive Modes in Populations of Potentilla freyniana

The mating systems of natural populations ofPotentila freyniana in Korea were determined usingalozyme analysis. The result sugests that P. freyniana is outcrosing as wel as employing vegetative repro-duction by stolon (self-fertilization rate, s < 0.5). The values of the inbreding coeficient of eight populationsin Korea varied from 0.24 to 0.31, with an average value of 0.274. For eight natural populations, multi-locusestimates of outcrosing (tm) was 0.603 acros 13 polymorphic loci, with individual population values rangingfrom 0.530 to 0.652. The relatively low outcrosing rates ofsome populations could be atributed to extensivevegetative reproduction by stolon and the isolation of lowering mature plants. Although P. freyniana usualypropagated by asexualy-produced ramets, I could not rule out he posibility that sexual reproduction ocuredat a low rate because ach ramet may produce terminal flowers . Although eterozygote xces was observedin some natural populations, most populations exhibited varying degres of inbreding and a heterozygote deficit.

keywords: Alozyme analysis, Mating systems, Potentila freyniana.Huh, Man Kyu J. Ecol. Field Biol. 30 (3) 26MATERIALS AND METHODSSampling ProcedureP. freynianawas colected from eight populations which repre-sent he geographical range of the plant in Korea nd h, Alozyme analysis, Mating systems, Potentila freyniana.Huh, Man Kyu J. Ecol. Field Biol. 30 (3) 26MATERIALS AND METHODSSampling ProcedureP. freynianawas colected from eight populations which repre-sent he geographical range of the plant in Korea nd h

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(2007) Received May 14 Accepted June 20,

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Article Contents

Vol.30 No.3

Comparison of Reproductive Modes in Populations of Potentilla freyniana

Abstract

Reference

Journal of Ecology and Environment