Phenotypic traits of 17 populations of Spartina alterniflora in China

Understanding the ecological and evolutionary processes that underlie phenotypic and genetic variation among invasive plant populations and the capacity of such populations to colonize a broad range of environments is a major goal in ecology. Rapid adaptation to local environmental conditions often leads to latitudinal clines in both phenotypes and genotypes of invasive plant species. Previous studies suggest that natural selection influenced a latitudinal cline in phenotypic traits of the invasive plant Spartina alterniflora in China. However, little is understood of the relationship between genetic and phenotypic differentiation and environmental factors among S. alterniflora populations. Here, we studied whether S. alterniflora exhibits a latitudinal cline in genetic diversity across the east coast of China and whether genetic and phenotypic differentiation among populations were correlated with environmental factors. The Restriction-site Associated DNA (RAD-seq) sequencing was used ..., A total of 17 populations of S. alterniflora that occurred along a coastal line in China were studied. Leaf tissues for DNA analysis were obtained from a total of 253 individuals (14-15 individuals per population) between August and September 2018, with the distance between any two individuals maintained at more than 30 m. In situ measurements of four phenotypic traits, including plant height, basal diameter, length of mature inflorescence, and the number of spike-like branches on one mature inflorescence, were also taken from the same S. alterniflora individuals that were sampled for DNA analysis., , # Title of Dataset:

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Phenotypic traits of 17 populations of Spartina alterniflora in China.

## Description of the Data and file structure

This is a CSV file for four phenotypic traits of 17 populations of Spartina alterniflora in China, including plant height, basal diameter, length of mature inflorescence, and the number of spike-like branches on one mature inflorescence.

The data were taken from a total of 253 individuals of 17 populations (14-15 individuals per population) of S. alterniflora that occurred along a coastal line in China between August and September 2018, with the distance between any two individuals maintained at more than 30 m.
The missing data codes was N/A.

解析入侵植物种群间表型与遗传变异的生态及进化驱动过程，以及此类种群在多样生境中的定植能力，是生态学领域的核心研究议题之一。入侵植物对本地环境的快速适应，往往会使其表型与基因型呈现出纬度梯度变异的格局。既往研究显示，自然选择塑造了中国境内入侵植物互花米草（Spartina alterniflora）表型性状的纬度梯度变异。但目前学界对互花米草种群间遗传分化与表型分化的关联，及其与环境因子的潜在联系仍知之甚少。

本研究旨在探究中国东海岸沿线互花米草的遗传多样性是否存在纬度梯度变异，同时解析种群间遗传分化与表型分化是否与环境因子存在显著关联。本研究采用限制性位点关联DNA测序（Restriction-site Associated DNA sequencing, RAD-seq）技术，对中国沿海分布的17个互花米草种群开展了系统性研究。研究于2018年8月至9月期间，共采集了253株互花米草的叶片组织用于DNA分析，每个种群采样14-15株，且任意两个采样个体间的间距均不小于30米。同时，针对上述用于DNA采样的同一批个体，我们开展了4项表型性状的原位测定，包括株高、基径、成熟花序长度以及单个成熟花序上的穗状分枝数。

# 数据集标题：
--- 中国17个互花米草种群表型性状数据集

## 数据与文件结构说明
本数据集为CSV格式文件，涵盖中国17个互花米草种群的4项表型性状数据，具体包含株高、基径、成熟花序长度以及单个成熟花序上的穗状分枝数。

本研究的数据采集自中国沿海分布的17个互花米草种群共计253株个体（每个种群采样14-15株），采样时间为2018年8-9月，任意两个采样个体间的间距均不小于30米。数据集中的缺失值编码为N/A。