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| Saenko, Suzanne, V; Chouteau, Mathieu; Piron-prunier, Florence; Blugeon, Corinne; Joron, Mathieu; Llaurens, Violaine. |
| Background Unravelling the genetic basis of polymorphic characters is central to our understanding of the origins and diversification of living organisms. Recently, supergenes have been implicated in a wide range of complex polymorphisms, from adaptive colouration in butterflies and fish to reproductive strategies in birds and plants. The concept of a supergene is now a hot topic in biology, and identification of its functional elements is needed to shed light on the evolution of highly divergent adaptive traits. Here, we apply different gene expression analyses to study the supergene P that controls polymorphism of mimetic wing colour patterns in the neotropical butterfly Heliconius numata. Results We performed de novo transcriptome assembly and... |
| Tipo: Text |
Palavras-chave: Supergene; Wing pattern; Lepidoptera; Heliconius butterflies; Transcriptome; RNA sequencing; Gene expression. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00659/77123/78514.pdf |
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| Chouteau, Mathieu; Dezeure, Jules; Sherratt, Thomas N.; Llaurens, Violaine; Joron, Mathieu. |
| Müllerian mimicry between chemically defended species arises from selection exerted by predators in which individuals benefit from higher survival when they share the same warning signal. However, despite sharing warning signals, co-mimetic species harbour a diversity of toxins at a range of different concentrations. This variation may affect the rate of predator avoidance learning and therefore the dynamics of mimicry. Here, to understand the nature of mimetic relationships in natural communities of butterflies and moths, we compared protection against predators induced by chemical defences of 13 lepidopteran species belonging to six mimicry complexes. Protection was estimated by quantifying the extent of avoidance learning, using domestic chicks, Gallus... |
| Tipo: Text |
Palavras-chave: Aposematism; Mullerian mimicry; Predator aversion; Quasi-Batesian mimicry; Toxicity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00500/61197/67181.pdf |
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