TABLE 1

χ2 analysis of the total and duplicated EST loci within homoeologous group 4 chromosomes

All EST lociDuplicated EST loci
Chromosome/armObserved  lociExpected  lociaP-valuebObserved  lociExpected  lociaP-valueb
4A 786639.3268210.3
4B 529639.3<0.001157210.3<0.001
4D 603639.3206210.3
Total1918631
4AS 246291.1<0.001 63 99.3<0.001
4AL 540494.9205168.7
4BS 181251.9<0.001 47 74.8<0.001
4BL 348277.1110 82.2
4DS 238215.3>0.05 96 73.60.001
4DL 365387.7110132.4
• a The expected loci for each chromosome were based on the assumption of equal EST content among the genomes. The expected loci for chromosome arms were based on the arm ratio (Gill et al. 1991).

• b Chi-square test indicates the probability of a departure from the expected loci.