《细胞》[Cell]13年7月3日出版pdf全文

nero1981

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) C( f8 e: J4 F1 e6 t! TOn the cover: Developmental mechanisms generate
+ z% i/ S4 ?' E2 ~' Tinterspecies hybrids that cannot propagate, as alluded to by the artist's 7 z  p! ]8 y- i% L/ Y
depiction of the mythical Minotaur's labyrinth on the cover. However, even ! {5 q0 s2 t: e5 J! |. e0 v
socially na?ve animals rarely mate with members of other species. The mechanisms - C4 A8 @7 g* k5 C3 N5 \
that control such behavioral reproductive isolation, an important tenet of   U; b/ Z" s7 M$ }' l! i% \
evolution, are not well understood. As depicted on the cover, male flies tap / i1 b% `* f4 }8 s
other flies with their foreleg prior to attempting to mate. Fan et al. (pp. # r  d; t: F7 c$ K/ {
89–102) show that foreleg removal permits males to mate with flies of other
) m" o, n4 ?0 Y" `. d$ Kspecies. Activation of foreleg neurons expressing the chemoreceptor Gr32a is 4 l, x" ~+ `! D; x, r
necessary and sufficient to inhibit interspecies courtship by D. " x: t% l$ D' @: O
melanogastermales. Gr32a is required to detect aversive hydrocarbons found
; M, h! H. ]6 b7 \, s: `" pon the cuticle of other drosophilid species, and one such hydrocarbon, 3 w+ a/ j8 S6 ~& V9 V  x7 v
z-11-pentacosene, is visible on the female fly on the cover. Strikingly, female ) I4 h: L9 b: h/ d: q; g3 `
flies utilize a Gr32a-independent mechanism to reject males of other species,
9 r+ C7 ?9 n* t0 k$ |with the cover depicting the female fly rejecting the male who is tapping her. 7 O6 j8 X* U2 w7 G. b) [0 F
Cover art by Julie Newdoll. , C' I$ l. ~. ]
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yuheng

谢谢

tpwang

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thanks

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. w1 j1 z- c5 a" g

eley

dingZ~~~~~

zorro

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MZzhang

谢谢！