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Table 3 Hybrid production in non-teneral flies. Summary of midgut and salivary gland (SG) infection results (Glossina pallidipes) when trypanosome clones 1738G and F1R1 were either co-transmitted in non-teneral flies (ntGR) or sequentially, with 1738G fed to teneral flies and F1R1 fed to these flies 18 days later (GR). Midguts from a subsample of flies and all SGs were scored for the presence of one or both trypanosome clones; additionally, each SG was examined for yellow hybrids. TI is the transmission index, which is the percentage of infected midguts that established SG infections

From: Dynamics of gamete production and mating in the parasitic protist Trypanosoma brucei

Cross

Midguts

Salivary glands

Infection rate

Trypanosomes present

TI

Trypanosomes present per SG

Both

R only

G only

Both

R only

G only

Yellow (% of R&G)

ntGR

39/74 (53 %)

20/25 (80 %)

4/25 (16 %)

1/25 (4 %)

35/39 (90 %)

28/68 (41 %)

31/68 (46 %)

9/68 (13 %)

21/28 (75 %)

GR

60/66 (91 %)

20/44 (46 %)

8/44 (18 %)

16/44 (36 %)

53/60 (80 %)

21/101 (21 %)

17/101 (17 %)

63/101 (62 %)

13/21 (62 %)