Supplementary material from: Alpine extremophytes in evolutionary turmoil: Complex diversification patterns and demographic responses of a Halophilic grass in a Central Asian biodiversity hotspot

Diversification and demographic responses are key processes shaping species evolutionary history. Yet we still lack a full understanding of ecological mechanisms that shape genetic diversity at different spatial scales upon rapid environmental changes. In this study, we examined genetic differentiation in an extremophilic grass Puccinellia pamirica and factors affecting its population dynamics among the occupied hypersaline alpine wetlands on the arid Pamir Plateau in Central Asia. Using genomic data, we found evidence of fine-scale population structure and gene flow among the localities established across the high-elevation plateau as well as fingerprints of historical demographic expansion. We showed that an increase in the effective population size could coincide with the Last Glacial Period, which was followed by the species demographic decline during the Holocene. Geographic distance plays a vital role in shaping the spatial genetic structure of P. pamirica alongside with isolation..., , ,

This README file was generated on 2024-01-03 by Anna Wrobel.

Article: Alpine Extremophytes in Evolutionary Turmoil: Complex Diversification Patterns and Demographic Responses of a Halophilic Grass in a Central Asian Biodiversity Hotspot. Systematic Biology, 2023.

Authors: Anna Wrobel, Ewelina Klichowska, Arkadiusz Nowak, Marcin Nobis

Description: This README file describes the data accompanying the above mentioned publication.

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GENERAL INFORMATION

1. Title of dataset

Supplementary Material associated with the article \"Alpine Extremophytes in Evolutionary Turmoil: Complex Diversification Patterns and Demographic Responses of a Halophilic Grass in a Central Asian Biodiversity Hotspot\"

2. Author Information

A. Principal Investigator Contact Information
Name: Anna Wrobel
ORCID: 0000-0002-6713-7867
Institution: Institute of Botany, Faculty of Biology, Jagiellonian University
Address: Gronostajowa 3, 30-387 Krakow, Poland
Email:
ResearchGate p...

物种分化与种群动态响应是塑造物种演化历史的核心过程。然而，我们仍未完全明晰在环境快速变化背景下，调控不同空间尺度下遗传多样性的生态机制。本研究以中亚干旱帕米尔高原上已被该物种占据的高盐高山湿地中的嗜极端环境草本帕米尔碱茅（Puccinellia pamirica）为研究对象，解析其遗传分化特征以及影响其种群动态的因素。通过基因组数据（genomic data），我们在该高海拔高原的多个采样点间发现了精细尺度种群结构与基因流的证据，同时也检测到历史种群扩张的分子印记。研究结果显示，有效种群规模（effective population size）的扩张可能与末次冰期（Last Glacial Period）相契合，而全新世（Holocene）时期该物种的种群规模则出现下降。地理距离与隔离效应共同在调控帕米尔碱茅的空间遗传结构中发挥关键作用……

本README文件由Anna Wrobel于2024年1月3日生成。

论文：《演化动荡中的高山极端物种：中亚生物多样性热点地区嗜盐草本的复杂分化模式与种群动态响应》，《系统生物学（Systematic Biology）》，2023年

作者：Anna Wrobel、Ewelina Klichowska、Arkadiusz Nowak、Marcin Nobis

说明：本README文件用于介绍上述论文配套的数据集。

### 通用信息
1. 数据集标题
与论文《演化动荡中的高山极端物种：中亚生物多样性热点地区嗜盐草本的复杂分化模式与种群动态响应》配套的补充材料
2. 作者信息
A. 首席研究员联系方式
姓名：Anna Wrobel
ORCID（Open Researcher and Contributor ID）：0000-0002-6713-7867
所属机构：雅盖隆大学生物学院植物研究所
通讯地址：波兰克拉科夫市格罗诺斯塔霍瓦街3号，邮编30-387
电子邮箱：
ResearchGate账号：p……