TABLE 2

Distribution of EST loci between chromosome arms

Chromosome arm
ChromosomeItemLongShortTotala
1AObserved371215586
Expectedb383.80202.20586
Deviation−12.8012.80  0
χ21.24 (P = 0.265)
Gene density 0.971.06
1BObserved483326809
Expectedb509.40299.60809
Deviation−26.4026.40  0
χ23.69 (P = 0.054)
Gene density 0.951.09
1DObserved459222681
Expectedb428.90252.10681
Deviation30.10−30.10  0
χ25.71 (P = 0.016)
Gene density  1.070.88
• a EST loci mapped only to chromosomes or centromere bins were excluded.

• b The expected number is based on the arm ratio value (Gill et al. 1991).