Figure 1.
Figure 1.

Histograms of trait values for an alfalfa breeding population evaluated for biomass yield in five environments and for stem cell wall composition. IA, Iowa; NY, New York; Que, Québec; 05, 2005; 06, 2006; ADL, acid detergent lignin; ADF, acid detergent fiber; NDF, neutral detergent fiber.

 


Figure 2.
Figure 2.

Correlation between simple sequence repeat (SSR) marker heterozygosity and biomass yield in five environments and stem cell wall composition in one environment for an alfalfa breeding population. IA, Iowa; NY, New York; Que, Québec; 05, 2005; 06, 2006; ADL, acid detergent lignin; ADF, acid detergent fiber; NDF, neutral detergent fiber.

 


Figure 3.
Figure 3.

The frequency of significant tests for genotypic linkage disequilibrium (LD) between pairs of simple sequence repeat (SSR) markers separated by different physical distances across a range of p-values for an alfalfa breeding population.

 


Figure 4.
Figure 4.

Population structure analysis of an alfalfa breeding population. The top panel shows the average log–likelihood value and the bottom panel shows the ad hoc quantity, ΔK, for differing numbers of subpopulations (z) within the population.

 


Figure 5.
Figure 5.

Simple sequence repeat (SSR) marker alleles associated with biomass yield in five environments or with stem cell wall composition (neutral detergent fiber [NDF], acid detergent fiber [ADF], and acid detergent lignin [ADL]) evaluated in one environment for an alfalfa breeding population. IA, Iowa; NY, New York; Que, Québec; 05, 2005; 06, 2006.