Data for paper titled "<b>From Inbreeding to Socia</b><b>l Behaviour</b><b>: Exploring Female-Biased Sex Allocation in </b><b><i>Microstigmus rosae</i></b>"

This study uses population genetic analyses to explore the relationship between mating behaviour and sex allocation in <i>Microstigmus rosae</i>. <i>M. rosae </i>(Field 2023) in an incipiently social silk wasp where most nests contain just one adult female, but some contain between 2-4 females, usually daughters of the nest foundress. We first conduct a comprehensive analysis of various genetic indicators of localised mating, including: (a) estimating individual and population level inbreeding coefficients; (b) testing allele frequencies for departures from Hardy–Weinberg equilibrium; and (c) investigating the incidence of diploid male production (a scenario predicted under conditions of inbreeding) through detecting heterozygosity among morphologically male adults. We then estimate the occurrence of mating between siblings. To do this we first inferred the genotypes of each adult female’s mate by comparing her genotype to those of her female offspring. Using these inferred genotypes, we were able to calculate the relatedness coefficients between all female-mate pairs and compare these with the distribution from known sister-brother relationships. We go on to examine the likely role of LMC &amp; LRE by comparing observed sex rations to theoretical predictions of sex allocation theory. We finally examine both precise and sequential sex allocation of offspring by individual adult foundresses, contrasting our observations with those expected under the two principal explanations for female-biased sex ratio adjustment in Hymenoptera (LMC and LRE).本研究采用群体遗传学分析方法，探究玫瑰织丝蜂（*Microstigmus rosae*）的交配行为与性分配之间的关联。M. rosae (Field, 2023) 是一类处于社会性演化初期的织丝蜂，多数蜂群仅含1只成年雌性个体，少数蜂群则包含2至4只雌性，这些雌性通常均为该蜂群建巢雌蜂的后代。本研究首先针对局域交配的各类遗传指标开展全面分析，具体包括：(a) 估算个体与群体水平的近交系数；(b) 检验等位基因频率是否偏离哈迪-温伯格平衡（Hardy–Weinberg equilibrium）；(c) 通过检测形态学上表现为雄性的成虫的杂合性，探究二倍体雄性产生的发生率——该现象是近交条件下的理论预测结果。随后，本研究估算了同胞间交配的发生情况。为此，我们首先将每只成年雌蜂的基因型与其雌性后代的基因型进行比对，以此推断其配偶的基因型。基于这些推断得到的配偶基因型，我们得以计算所有雌蜂-配偶对的亲缘系数，并将其与已知的姐妹-兄弟亲缘关系的分布进行对比。本研究进一步通过比较观测性比与性分配理论的理论预测值，检验局域配偶竞争（Local Mate Competition, LMC）与局部资源增强（Local Resource Enhancement, LRE）的潜在作用。最后，本研究分析了单个建巢雌蜂所产后代的精确性分配与顺序性分配模式，并将观测结果与膜翅目（Hymenoptera）雌性偏性性比调控的两种主流解释（LMC与LRE）下的预期结果进行对比。

搜集汇总

背景与挑战

背景概述

该数据集包含两个CSV文件，支持一项关于社会性丝蜂（Microstigmus rosae）性别分配的研究。研究通过群体遗传分析探讨了近亲繁殖与社会行为对雌性偏向性别比例的影响，重点检验了局域配偶竞争和局域资源增强的理论预测。数据集提供了遗传指标和性别比例数据，用于分析交配模式、近亲繁殖程度及其与性别分配策略的关系。