This paper infers the processes of development and change of grammatical gender in Indo-Aryan languages using phylogenetic comparative methods. 48 Indo-Aryan languages are coded based on 44 presence-absence features relating to gender marking on the verbs, adjectives, personal pronouns, demonstrative pronouns, and possessive pronouns. A Bayesian Reverse Jump Hyper Prior analysis, which infers the evolutionary dynamics of changes between feature values, gives results that are consistent with historical linguistic and typological studies on gender systems in Indo-Aryan languages and predicts the evolutionary trends of the features included in the dataset.

中文翻译：

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印度-雅利安语言中语法性别的演变趋势

本文采用系统发育比较方法推断印度-雅利安语言中语法性别的发展和变化过程。48 种印度-雅利安语言是根据 44 种与动词、形容词、人称代词、指示代词和所有格代词上的性别标记相关的在场/缺席特征进行编码的。贝叶斯反向跳跃超先验分析，推断特征值之间变化的进化动态，给出与印度-雅利安语言性别系统的历史语言和类型学研究一致的结果，并预测数据集中包含的特征的进化趋势.