Cryptic genetic variation in brain gene expression precedes the evolution of cannibalism in spadefoot toad tadpoles
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The origins of novel behaviors are poorly understood, despite behaviorâs hypothesized roles in evolution. One model, âgenetic accommodationâ, proposes that selection on ancestral phenotypic plasticity may precede the evolution of novel traits. A critical assumption of genetic accommodation is that ancestral lineages possess heritable genetic variation for trait plasticity that is revealed in novel environments, thereby providing the raw materials for subsequent refinement of the novel trait in derived lineages. Here, we use a combination of behavioral and RNA-seq approaches to test this assumption in the context of a novel tadpole behavior: predatory cannibalism. Cannibalism evolved in the spadefoot genus Spea, where an invertebrate diet induces a carnivorous tadpole morph capable of consuming live conspecific tadpoles. In contrast, closely related Scaphiopus tadpoles do not induce this carnivorous phenotype. Through species comparisons, we found that ancestral Spea likely expressed beh..., , , # Cryptic genetic variation in brain gene expression precedes the evolution of cannibalism in spadefoot toad tadpoles
This readme file was generated on 2024-02-24 by Dante J. Nesta
GENERAL INFORMATION
Title of Dataset: Cryptic genetic variation in brain gene expression precedes the evolution of cannibalism in spadefoot toad tadpoles
1st Author/Corresponding Author Information
Name: Dante J. Nesta
ORCID: 0009-0007-8206-660X
Institution: Indiana University Bloomington
Address: 915 E 3rd St, Bloomington, IN 47405
Institutional Email: [dnesta@iu.edu](mailto:dnesta@iu.edu)
Alternative Email: [dantenesta1@gmail.com](mailto:dantenesta1@gmail.com)
2nd Author/Principal Investigator Information
Name: Cristina C. Ledón-Rettig
ORCID: 0000-0002-1417-7486
Institution: Indiana University Bloomington
Address: 915 E 3rd St, Bloomington, IN 47405
Email: [crisledo@iu.edu](mailto:crisledo@iu.edu)
Date of data (animal) collection: 2022-04-25
Geographic location of data collection: 38°59'40.3\"N, 87°01...,
创建时间：
2025-04-11
