Rhagoletis flies

Question 1

reference

Answer 1

Linn et al. (2004)

Question 2

species

Answer 2

Rhagoletis pomonella

Question 3

Rhagoletis pomonella is a model for … speciation by means of …-… shifts

Answer 3

sympatric, host-plant

Question 4

Many Rhagoletis species are known to use … … as a key … cue to distinguish among their respective host plants

Answer 4

fruit odor, olfactory

Question 5

Rhagoletis species meet on or near the … fruit of their hosts to …, behavioural preferences for fruit … translate directly into … reproductive isolation among flies.

Answer 5

unabscised, mate, odor, prezygotic

Question 6

This study reports that F1 hybrids between the … and … host races of R. pomonella, as well as between the host races and a … species, do not … and … themselves towards host fruit …, when their parent flies do.

Answer 6

apple, hawthorn, sibling, respond, orientate, volatiles

Question 7

This reduced ability of hybrids to orient to fruit volatiles could be a result of … … … for preference and avoidance behaviours

Answer 7

conflicting neural pathways

Question 8

It suggests hybrids might suffer a … disadvantage for finding fruit in nature. Therefore, host-specific mating may play a dual role as an important … as well as … reproductive barrier to isolate … Rhagoletis flies

Answer 8

fitness, postzygotic, prezygotic, sympatric