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Genetic analysis of flowering time for eight natural populations of Arabidopsis thaliana (Brassicaceae) in Japan with special regard to the genes, FRI and FLC
Author(s) -
Shibaike Hiroyuki,
Ishiguri Yoshio,
Kawano Shoichi
Publication year - 1999
Publication title -
plant species biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.419
H-Index - 36
eISSN - 1442-1984
pISSN - 0913-557X
DOI - 10.1046/j.1442-1984.1999.00022.x
Subject(s) - brassicaceae , biology , arabidopsis thaliana , arabidopsis , gene , evolutionary biology , genetics , botany , mutant
To understand the genetic basis of flowering time for eight natural populations of Arabidopsis thaliana (L.) Heynh. in Japan, we conducted growth experiments with and without chilling treatments, and crossing experiments of plants from Japanese populations with two well‐characterized flowering time ecotypes (Col and L er ). In order to clarify the associations between flowering time and genotype in the regions around the genes, FRI and FLC , microsatellite analysis was also conducted. Mean time to flowering for the eight Japanese populations varied from 20 to 110 days, and was longer than that for Col and L er . Their days to flowering were shortened significantly by chilling treatment. The days to flowering of the F 1 progeny and the frequency distribution of the days to flowering in F 2 progeny indicated that the flowering behavior of the Japanese A. thaliana were controlled mainly by digenic interactions between the FRI and FLC loci. Moreover, microsatellite analysis of F 3 progeny resulting from the representative crosses revealed that the eight Japanese A. thaliana populations could be classified into at least two groups according to their genotype at the FRI and FLC loci.