Figure 1.
Spatial location of weedy rice populations used for outcrossing and genetic diversity studies.
The HLJ-1 to HLJ-4 populations were collected from Heilongjiang Province; the JL-1 to JL-4 populations from Jilin Province; and the JS-1 to JS-4 populations from Jiangsu Province. The detail information of each population refers to Table 1.
Table 1.
Sampling and location of weedy rice populations and the coexisting rice cultivars from northeast and east China for the estimate of outcrossing rates and genetic diversity.
Table 2.
SSR primer pairs used for DNA amplification with their molecular weight of fragments detected in eleven weedy rice populations.
Figure 2.
The inbreeding coefficients (fM) of maternal plants plotted as a function of outcrossing rates (tm).
Bars indicate the standard deviation of the means. Expected inbreeding coefficients at inbreeding equilibrium (feq), calculated by (1 - tm)/(1+tm), is plotted in a bold line.
Table 3.
Outcrossing rates of eleven weedy rice populations estimated using the multilocus mixed mating model.
Table 4.
Parameters of genetic diversity in eleven weedy rice populations based on 22 SSR primer pairs.
Figure 3.
Correlation between outcrossing rates (tm) and observed heterozygosity (Ho) of weedy rice populations.
Figure 4.
The UPGMA dendrogram of weedy rice populations, based on Nei's unbiased genetic distance.
The numbers on the branches indicate the percentages of times a cluster appeared in 1000 bootstrap samples.
Table 5.
Paternal specific alleles and their frequencies in weedy rice populations as estimated by MLRT (Ritland, 2002) [36].
Figure 5.
The UPGMA dendrogram of weedy rice populations and the coexisting rice varieties in the same fields, based on Nei's unbiased genetic distance of 4 shared SSR primer pairs (RM21, RM218, RM219, RM276) by the two taxa.