Table 1.
Variances of allele-length distributions and numbers of alleles indicate a bottleneck and subsequent population growth in South American non-CA C. immitis
| Population | n | Locus†
|
Linkage disequilibria, %‡ | g ratio | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 621 | GA37 | GA1 | ACJ | KO3 | KO7 | KO1 | KO9 | ||||
| South America§ | 14 | 0.18 (2) | 3.80 (3) | 0.40 (3) | 0.00 (1) | 0.29 (2) | 1.79 (2) | 3.19 (3) | 2.18 (3) | 28.5 | 0.006* |
| Southern California | 6 | 0.67* (3) | 5.10 (4) | 1.10 (4) | 1.20* (2) | 29.8* (4) | 11.8* (3) | 19.9* (4) | 15.1* (5) | 0.00 | 0.309 |
| Texas | 24 | 0.20 (2) | 96.0* (7) | 0.70 (4) | 0.30* (2) | 37.0* (5) | 47.0* (4) | 6.90* (4) | 7.10* (5) | 7.14 | 3.036 |
| Arizona | 31 | 0.20 (3) | 35.9* (8) | 1.10* (5) | 18.0* (3) | 52.0* (7) | 8.00* (6) | 12.5* (8) | 6.60* (7) | 0.00 | 0.903 |
| Mexico¶ | 38 | 0.70* (2) | 178* (11) | 1.20* (5) | 0.40* (3) | 98.0* (11) | 3.70* (5) | 12.2* (8) | 12.9* (11) | 3.57 | 10.92 |
, P < 0.05 for locus variances that are significantly greater in comparisons against South American in F tests.
The locus GAC2 is omitted, because it is monomorphic in non-CA C. immitis.
Proportion of loci in significant linkage disequilibria after sequential Bonferroni corrections for multiple pairwise comparisons.
Variances and numbers of alleles (in parentheses) within South American are shown in bold. For the interlocus g test for population expansion, significance is assessed by using the table of 0.05 significance level cutoffs published previously (22) and is shown with an asterisk.
Northern, central, and southern Mexico populations are considered together in order to increase sample size.