Hybridization and its impact on the ontogenetic allometry of skulls in macaques

The importance of hybridization in morphological diversification is a fundamental topic in evolutionary biology. However, despite accumulated knowledge concerning adult hybrid variations, how hybridization affects ontogenetic allometry is less well understood. Herein, we assessed the effects of hybridization on the postnatal ontogenetic allometry in skulls of a putative hybrid population of introduced Taiwanese macaques (Macaca cyclopis) and native Japanese macaques (M. fuscata). Genomic analyses indicated that the population consisted of individuals with various degrees of admixture, formed by male migration of Japanese to Taiwanese macaques. No marked ontogenetic trajectory angle dissociation was observed in the overall skull shape of hybrids. Transgressive variations in the overall skull shape were observed mainly in non-allometric components. Hybridization collapsed an unknown mechanism found in Japanese macaques that restricts the growth rate of the maxillary sinus (the hollow spac..., This study investigated the genetic and morphological variation of Macaca cyclopis, M. fuscata and their hybrids. Genetic variation was assessed using single nucleotide polymorphisms obtained by double-digested restriction site-associated DNA sequencing. Morphological variation was assessed using landmark-based geometric morphometrics. See the README and related paper for details., The files are in text format and are accessible from R or any text editor., # Data from: Hybridization and its impact on the ontogenetic allometry of skulls in macaques

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This dataset contains genomic variant data and landmark-based shape data from Macaca cyclopis, M. fuscata and their hybrids, and the statistical output from them.

## Description of the data and file structure

This dataset consists of an R script, a data sheet, and five zip-archived directories containing some data files as follows. See the related paper for details.

### calc\_mismatch\_bias.R

R script to compute \"mismatch\" and \"bias\", which evaluate transgressive segregation, based on the Procrustes distance. This script uses the R package \"shapes\" (Dryden 2023).

### data.csv

Main data sheet with the following columns. NA indicates not applicable, not collected, or filtered for low quality prior to analysis. Note that some individuals lack morphological data, while others lack genetic data. Species are unknown prior to the analyses for the individuals in the Oike area and are indicat...