Drosophila strains examined in the present study
| Species . | Strain . | Origin . | LT50(°C) . | Latitude of collection site; comments . |
|---|---|---|---|---|
| D. virilis Sturtevant | T53 | Tashkent | 41.2 | 41° N; especially warm climate |
| T61 | Tashkent | 41.1 | 41° N; especially warm climate | |
| 9 | Batumi (Georgia) | 41.3 | 42° N; caucasus; not as warm as Tashkent | |
| 160 | Japan | 40.8 | ∼32-36° N; marker strain with many mutations | |
| 101 | Japan | 41.2 | ∼32-36° N; wild-type strain | |
| 1433 | Leeds, UK | 41.1 | 53° N | |
| D. lummei Hackman | 202 | South Russia | 40.1 | 45° N |
| 207 | South Russia | 40.2 | 45° N | |
| 200 | Moscow | 40.1 | 55° N | |
| 1102 | Finland | 40.2 | 60° N | |
| 1109 | Finland | 40.2 | 60° N | |
| D. texana Patterson | 423 | TX, USA | 41 | ∼32° N; woodland |
| D. novamexicana Patterson | 424 | NE, USA | 42 | ∼32-37° N; desert |
| D. melanogaster Meigen | Oregon R | OR, USA | 40 | 43° N; collected in 1925 |
| Species . | Strain . | Origin . | LT50(°C) . | Latitude of collection site; comments . |
|---|---|---|---|---|
| D. virilis Sturtevant | T53 | Tashkent | 41.2 | 41° N; especially warm climate |
| T61 | Tashkent | 41.1 | 41° N; especially warm climate | |
| 9 | Batumi (Georgia) | 41.3 | 42° N; caucasus; not as warm as Tashkent | |
| 160 | Japan | 40.8 | ∼32-36° N; marker strain with many mutations | |
| 101 | Japan | 41.2 | ∼32-36° N; wild-type strain | |
| 1433 | Leeds, UK | 41.1 | 53° N | |
| D. lummei Hackman | 202 | South Russia | 40.1 | 45° N |
| 207 | South Russia | 40.2 | 45° N | |
| 200 | Moscow | 40.1 | 55° N | |
| 1102 | Finland | 40.2 | 60° N | |
| 1109 | Finland | 40.2 | 60° N | |
| D. texana Patterson | 423 | TX, USA | 41 | ∼32° N; woodland |
| D. novamexicana Patterson | 424 | NE, USA | 42 | ∼32-37° N; desert |
| D. melanogaster Meigen | Oregon R | OR, USA | 40 | 43° N; collected in 1925 |
LT50, a measure of basal thermotolerance, is the temperature of a 30-min heat shock resulting in 50% mortality, as interpolated from the data of Fig. 1. Temperatures resulting in >99% mortality are given in Garbuz et al.(2002).