Table 2. Summary of diagnostic chromosomal rearrangements for cytoforms of the Simulium tuberosum group in Vietnam.
| Cytoforms | Larvae (n) | Fixed inversions1 | Common2 autosomal polymorphisms | Sex-linked rearrangements | Notes |
|---|---|---|---|---|---|
| tani complex | |||||
| tani ‘B2’ | 48 | none | none | none | IL-2 is absent |
| tani ‘M’ | 22 | IL-2 | IIIL-47 | none | |
| tani ‘N’ | 12 | IIIL-5, IIIL-54, IIIL-55 | IL-14 | none | |
| xuandei | 9 | IS-23, IL-2, IIIL-34, IIIL-49 | IIIL-50, IIIL-51, IIIL-52 | none | |
| tuberosum subcomplex | |||||
| brevipar ‘A’ | 8 | IIIL-13 | IS-26 | none | Malaysian sample |
| brevipar ‘B’ | 2 | IIIL-13, IIIL-81, IIIL-82 | none | IIIL-83? | possibly Y linked |
| brevipar ‘C’ | 1 | IIIL-13, IIIL-84, IIIL-85, IIIL-86 | none | ? | |
| congi | 4 | IIIL-13, IIIL-71, IIIL-72, IIIL-80 | none | none | |
| doipuiense ‘A’ | 113 | IIIL-11, IIIL-13 | none | none or rare | autosomal inversions disproportionately in linkage groups |
| doipuiense ‘C’ | 1 | IS-32, IL-16, IIIL-11, IIIL-13, IIIL-79 | none | ? | |
| doipuiense ‘D’ | 14 | IIIL-11, IIIL-13, IIIL-79 | none | none | |
| doipuiense ‘E’ | 8 | IIIL-11, IIIL-13 | none | IIIL-68, IIIL-69, IIIL-70, 100hb1 | probably X linked |
| doipuiense ‘F’ | 1 | IIIL-11, IIIL-13, IIIL-87, IIIL-88, IIIL-89 | none | ? | |
| rufibasis ‘B’ | 14 | IIIL-8, IIIL-11, IIIL-13 | IIIL-12, IIIL-60 | IS-27, IS-28, IS-29, IS-31, IS 13hb | differentiated X and Y chromosomes |
| yuphae ‘A’ | 21 | IIIL-12, IIIL-13 | none | none | |
| yuphae ‘B’ | 2 | IIIL-12, IIIL-13 | none | IIIL-57?, IIIL-58? | possibly sex linked |
1 All members of the S. tani complex had 3 inversions in IL, 6 inversions in IIS, 3 inversions in IIL, and 3 inversions in IIIL (IIIL-1, IIIL-2, and IIIL-3); all members of the Southeast Asian S. tuberosum subgroup had IL-1, IL-tuberosum, 4 inversions in IIS, 3 inversions in IIL, and IIIL-1 [19].
2 Common = frequency of inverted homologues > 0.33.