DOI: 10.5061/dryad.sn02v6x7w
title: Genetic variation for sexual dimorphism in developmental traits in Drosophila melanogaster

description: Sexual dimorphism in traits of insects during the developmental stages
 could potentially be the direct or indirect result of sex-specific
 selection provided that genetic variation for sexual dimorphism is
 present. We investigated genetic variation in sexual dimorphism in a set
 of Drosophila melanogaster inbred lines for two traits: egg to adult
 development time and pupation site preference. We observed considerable
 genetic variation in sexual dimorphism among lines in both traits. The
 sexual dimorphic patterns remained relatively consistent across multiple
 trials, despite both traits being sensitive to environmental conditions.
 Additionally, we measured two sexually dimorphic adult morphological
 traits in six sampled lines and investigated correlations in the sexual
 dimorphism patterns with the two developmental traits. The abundance of
 genetic variation in sexual dimorphism for D. melanogaster developmental
 traits demonstrated in this study provides evidence for a high degree of
 evolvability of sex differences in pre-adult traits in natural
 populations.
description: ## Genetic variation for sexual dimorphism in developmental traits in
 Drosophila melanogaster Authors: Tianyu Li, Rebecca S. Zhang, and John R.
 True --- **This dataset contains:** 1. **'Collected_data.xlsx'**
 ---- The data collected in the original data collection forms, for
 'Trial I' to 'Trial VI'. This data is only for
 overview and not for data input. 2.
 **'4b_development_time_keep_outlier_rep1.csv'** to
 '4b_development_time_keep_outlier_rep6.csv' ---- Raw data for R
 input. 3. **'Chapter_I_09DEC2023'** ---- The R code. ##
 Description of the data and file structure 1.
 **'Collected_data.xlsx'** ---- The data collected in the
 original data collection forms, for 'Trial I' to 'Trial
 VI'. a. Each sheet contains a Trial collected data. b. In each sheet,
 **the upper zone** **(e.g. #Collection, Date & Time...)** is the
 original data collection forms. 'Date & Time' recorded the
 time started the collection (we calculated mid-time between the
 collections for the trait development time, please refer to the manuscript
 'Methods and Materials' for details). The collection form has
 the 'Vial Group' and 'Cotton Group', and recorded male
 and female of each vial in separated rows. c. In Trial I, the columns of
 the collection form are the DGRP line numbers. The rows are the vial
 numbers. However, we decided to randomize the vial position (shuffle the
 vials of all lines) in Trial II, III, and IV, to remove any potential
 environmental discrepancies related to the vial position in the incubator.
 In these three Trials, the columns are just the number of vials, e.g. 0+
 is vial 0-10, 10+ is vial 11-20, etc., together with the row number to
 indicate the vial number. d. Therefore, only for Trial II-IV, we mapped
 the vial position to the lines (recorded in the beginning, not provided in
 this dataset) in **the middle zone** **('Relocate the vials to the
 lines')** for each collection form. e. The **very bottom data
 ('Sum')** is the sum of total collected by vial each line. 2.
 **'4b_development_time_keep_outlier_rep1.csv'** to
 '4b_development_time_keep_outlier_rep6.csv' ---- Raw data for R
 input. a. Each trial collected data is in separated .csv file.
 '..._rep1' is for Trial I, '..._rep2' is for Trial II,
 etc. b. The top row is the DGRP line number. The data in the following
 rows are mapped from the **'Collected_data.xlsx' middle zone**
 **('Relocate the vials to the lines')** for Trial II, III, and
 IV, and **the upper zone** **(e.g. #Collection 1a, Date & Time...)**
 for Trial I, V, and VI. c. Row 2-33 is the 'Collection 1' the
 1st collection form, row 34-65 is the 2nd collection form, etc. d. The
 empty cells indicate no vial set up for corresponding line. This can be
 traced and mapped to each Trial's line-vial setup, e.g. Trial I, line
 303, only 4 vials were set up. In
 '4b_development_time_keep_outlier_rep1.csv', column 1
 '303' row 10-17 and 26-33 are empty. e. The empty cells are
 replaced with 'NA' in the R code. 3.
 **'Chapter_I_09DEC2023'** ---- The R code. The R code contains
 read input from the
 **'4b_development_time_keep_outlier_rep1.csv' to
 '...rep6.csv'**, by-vial data summarize, model building and
 testing, and figure outputs, for the manuscript.