《细胞》[Cell]13年7月3日出版pdf全文

nero1981

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On the cover: Developmental mechanisms generate ! B1 W4 d+ r# n
interspecies hybrids that cannot propagate, as alluded to by the artist's 8 D0 x; {/ A' o" U
depiction of the mythical Minotaur's labyrinth on the cover. However, even % }! W2 q5 F6 K6 x0 @4 |
socially na?ve animals rarely mate with members of other species. The mechanisms
) h7 G  U" @% [! G! f& Xthat control such behavioral reproductive isolation, an important tenet of
! a* f7 r" F8 t5 Cevolution, are not well understood. As depicted on the cover, male flies tap 5 a* v+ @8 G2 @9 ~# d6 p
other flies with their foreleg prior to attempting to mate. Fan et al. (pp. " |7 A6 r3 u" |1 }, h  T  @8 e
89–102) show that foreleg removal permits males to mate with flies of other
* |9 ~+ J2 m& o1 h( Tspecies. Activation of foreleg neurons expressing the chemoreceptor Gr32a is 8 P* h& c6 i4 P
necessary and sufficient to inhibit interspecies courtship by D.
- ^* y7 R0 L2 X9 M6 ~melanogastermales. Gr32a is required to detect aversive hydrocarbons found
0 v1 {, Q3 A% a- j; w2 L% s3 Eon the cuticle of other drosophilid species, and one such hydrocarbon,
) E( `( k4 Z; g- lz-11-pentacosene, is visible on the female fly on the cover. Strikingly, female ) M! T# @3 m& e( _' o  e
flies utilize a Gr32a-independent mechanism to reject males of other species,
0 K( f* Z0 q% Qwith the cover depicting the female fly rejecting the male who is tapping her.
+ {% r; Q2 q2 ?% OCover art by Julie Newdoll. - [. }1 K) W7 f$ h

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yuheng

谢谢

tpwang

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cz200203

THANKS
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exin11

懵懂干细胞

千呼万唤始出来 谢谢

chichao0000

thanks a lot
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eley

dingZ~~~~~

zorro

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MZzhang

谢谢！