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Table 2 Experimental design. Summary of the treatment. Since O. sulphurea contains no phenethylamine alkaloids, its basal concentration is 0X, whereas for T. terscheckii the basal concentration is 1X

From: Transcriptional responses are oriented towards different components of the rearing environment in two Drosophila sibling species

 

Treatments

Cactus

O. sulphurea

T. terscheckii

Condition

Low

nutrition

Native

2X

alkaloids

Low

nutrition

Native

2X

alkaloids

Cactus host of

(primary / secondary)

D. buzzatii /

D. koepferae

D. buzzatii /

D. koepferae

D. buzzatii /

D. koepferae

D. koepferae /

D. buzzatii

D. koepferae /

D. buzzatii

D. koepferae /

D. buzzatii

Dead-yeast

extract added

No

Yes

Yes

No

Yes

Yes

Alkaloids added

No

No

Yes

No

No

Yes

Total alkaloids

0X

0X

2X

1X

1X

2X