Exploitation of an ancestral pheromone biosynthetic pathway contributes to diversification in Heliconius butterflies.
Exploitation of an ancestral pheromone biosynthetic pathway contributes to diversification in Heliconius butterflies.
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DOI：
10.1098/rspb.2022.0474
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发表时间：
2022-07-27
影响因子：
4.7
通讯作者：
Dasmahapatra, Kanchon K.
中科院分区：
文献类型：
--
作者：
Cama, Bruna;Ehlers, Stephanie;Szczerbowski, Daiane;Thomas-Oates, Jane;Jiggins, Chris D.;Schulz, Stefan;McMillan, W. Owen;Dasmahapatra, Kanchon K.
在求偶过程中，许多种类的雄性蝴蝶会产生含有雄性信息素（MSPs）的雄激素分泌物，这些信息素可以传达物种身份并影响雌性的选择。因此，MSPs可能是生殖障碍的候选人，但它们在物种形成中的作用仍然研究得很少。虽然Heliconius蝴蝶是物种形成的模型系统，但它们的MSP尚未从宏观进化的角度进行研究。我们使用GC/MS来表征男性雄锥分泌物在33的69种Heliconiini部落。我们发现这些混合物是物种特异性的，与生殖隔离的作用一致。我们检测到一个突发的混合多样化率在最speciose属，Heliconius; Heliconius和Eueides物种使用脂肪酸（FA）的代谢途径，以解锁更复杂的混合物比基础Heliconiini物种，其分泌物主要是植物样代谢产物的后果。10个姐妹种对的比较表明，混合相异和范围重叠之间存在显著的正相关关系，与同域分布中的字符位移或强化一致。这些结果首次表明，MSP多样化可以促进这组蝴蝶的生殖隔离，展示了如何实现祖先的特征，选择FA代谢途径的信息素生产，可以促进快速物种形成。
During courtship, male butterflies of many species produce androconial secretions containing male sex pheromones (MSPs) that communicate species identity and affect female choice. MSPs are thus likely candidates as reproductive barriers, yet their role in speciation remains poorly studied. Although Heliconius butterflies are a model system in speciation, their MSPs have not been investigated from a macroevolutionary perspective. We use GC/MS to characterize male androconial secretions in 33 of the 69 species in the Heliconiini tribe. We found these blends to be species-specific, consistent with a role in reproductive isolation. We detected a burst in blend diversification rate at the most speciose genus, Heliconius; a consequence of Heliconius and Eueides species using a fatty acid (FA) metabolic pathway to unlock more complex blends than basal Heliconiini species, whose secretions are dominated by plant-like metabolites. A comparison of 10 sister species pairs demonstrates a striking positive correlation between blend dissimilarity and range overlap, consistent with character displacement or reinforcement in sympatry. These results demonstrate for the first time that MSP diversification can promote reproductive isolation across this group of butterflies, showcasing how implementation of an ancestral trait, the co-option of the FA metabolic pathway for pheromone production, can facilitate rapid speciation.
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影响因子：
64.8
作者：
Dasmahapatra, Kanchon K.;Walters, James R.;Briscoe, Adriana D.;Davey, John W.;Whibley, Annabel;Nadeau, Nicola J.;Zimin, Aleksey V.;Hughes, Daniel S. T.;Ferguson, Laura C.;Martin, Simon H.;Salazar, Camilo;Lewis, James J.;Adler, Sebastian;Ahn, Seung-Joon;Baker, Dean A.;Baxter, Simon W.;Chamberlain, Nicola L.;Chauhan, Ritika;Counterman, Brian A.;Dalmay, Tamas;Gilbert, Lawrence E.;Gordon, Karl;Heckel, David G.;Hines, Heather M.;Hoff, Katharina J.;Holland, Peter W. H.;Jacquin-Joly, Emmanuelle;Jiggins, Francis M.;Jones, Robert T.;Kapan, Durrell D.;Kersey, Paul;Lamas, Gerardo;Lawson, Daniel;Mapleson, Daniel;Maroja, Luana S.;Martin, Arnaud;Moxon, Simon;Palmer, William J.;Papa, Riccardo;Papanicolaou, Alexie;Pauchet, Yannick;Ray, David A.;Rosser, Neil;Salzberg, Steven L.;Supple, Megan A.;Surridge, Alison;Tenger-Trolander, Ayse;Vogel, Heiko;Wilkinson, Paul A.;Wilson, Derek;Yorke, James A.;Yuan, Furong;Balmuth, Alexi L.;Eland, Cathlene;Gharbi, Karim;Thomson, Marian;Gibbs, Richard A.;Han, Yi;Jayaseelan, Joy C.;Kovar, Christie;Mathew, Tittu;Muzny, Donna M.;Ongeri, Fiona;Pu, Ling-Ling;Qu, Jiaxin;Thornton, Rebecca L.;Worley, Kim C.;Wu, Yuan-Qing;Linares, Mauricio;Blaxter, Mark L.;Ffrench-Constant, Richard H.;Joron, Mathieu;Kronforst, Marcus R.;Mullen, Sean P.;Reed, Robert D.;Scherer, Steven E.;Richards, Stephen;Mallet, James;McMillan, W. Owen;Jiggins, Chris D.
通讯作者：
Jiggins, Chris D.
DOI：
10.1098/rspb.2022.0474
发表时间：
2022-07-27
影响因子：
4.7
作者：
Cama, Bruna;Ehlers, Stephanie;Szczerbowski, Daiane;Thomas-Oates, Jane;Jiggins, Chris D.;Schulz, Stefan;McMillan, W. Owen;Dasmahapatra, Kanchon K.
通讯作者：
Dasmahapatra, Kanchon K.
DOI：
10.1073/pnas.69.6.1403
发表时间：
1972-01-01
影响因子：
11.1
作者：
GILBERT, LE
通讯作者：
GILBERT, LE
影响因子：
2.8
作者：
Andersson, Johan;Borg-Karlson, Anna-Karin;Wiklund, Christer
通讯作者：
Wiklund, Christer
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y