Fig 1.
Geographic distribution of sampling counties for glutinous rice germplasms in the 'He' cultivation zone of Southwest China.
(A) Location of Qiandongnan Miao and Dong Autonomous Prefecture (pink, Guizhou Province) and Liuzhou City (orange, Guangxi Province). (B) Distribution of the four sampling counties, including Liping, Congjiang, and Rongjiang Counties in Qiandongnan Prefecture (Guizhou Province), and Sanjiang County in Liuzhou City (Guangxi Province). Maps were created with ArcGIS Pro 3.6.0. The administrative boundary data were obtained from the GADM database (https://gadm.org/).
Table 1.
Genetic diversity analysis of 388 glutinous rice germplasm using SSR sequencing.
Fig 2.
UPGMA clustering of glutinous rice germplasms (4 indica and 4 japonica reference controls).
(A) UPGMA clustering diagram of 388 glutinous rice germplasms alongside 8 indica/japonica references. (B) The indica/japonica composition in KSR and non-KSR germplasms.
Fig 3.
Population genetic structure analysis of 388 glutinous rice germplasms.
(A) Estimation of the optimal K value based on ΔK analysis. (B) Inferred population structure of 388 samples at K = 2, where each vertical bar represents an individual sample. The numbers in parentheses indicate that 1 denotes non-KSR and 2 denotes KSR. Colors indicate genetic clusters (green for subpopulation Ⅰ and red for subpopulation Ⅱ), with segment lengths proportional to membership probabilities (Q-values).
Table 2.
Comparison of Genetic diversity parameters between primary core subsets compared with the entire collection.
Table 3.
Genetic diversity retention rates for representative core germplasm subsets.
Fig 4.
Results-driven workflow for identifying the final core germplasm collection.
Table 4.
Genetic diversity parameters for different optimized core sets compared with the entire collection.
Table 5.
Genetic diversity retention rates of core set 6 and 9.
Fig 5.
PCoA Analysis of Core sets 6(A) and 9(B).