Morphological variation in Opuntia jaliscana (Cactaceae)

IF 0.7 4区生物学 Q4 PLANT SCIENCES

Anales Del Jardin Botanico De Madrid Pub Date : 2017-06-26 DOI:10.3989/AJBM.2431

Edgar Noel López-Borja, R. Romo-Campos, Hilda Julieta Arreola-Nava, A. M. Urías, Sofía Loza-Cornejo

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引用次数: 1

Abstract

The aim of this study was to describe morphological variations of Opuntia jaliscana in 5 wild populations in the state of Jalisco (Mexico). Populations were selected along an environmental aridity gradient, and 61 vegetative and reproductive characters from 25 individuals were measured per population. Quantitative characters were analyzed independently by a one-way ANOVA test using the site as variation factor. Subsequently, a discriminant analysis was performed. The discriminant analysis results showed that the 46% of the total variation was explained by the first four discriminant functions. The analysis of overall membership between populations indicated that individuals were correctly classified in 87% of cases. Pearson linear correlation between the most significant variables and the aridity index, showed a positive relationship to cladode thickness and diameter of the trunk. The population from Tierra Blanca shows an outlier behavior because of variation in cladode thickness and fruit size, which might be related to plasticity of individuals to have a greater availability of water, while in Los Vallejo the separation might be due to selection by management and use. The remaining populations exhibited some morphological variability without separation.

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仙人掌科仙人掌的形态变异

摘要本研究旨在描述墨西哥哈利斯科州5个野生种群中哈利斯卡麻的形态变异。沿环境干旱梯度选择种群，测定每种群25个个体的61个营养性状和生殖性状。以地点为变异因子，采用单因素方差分析对数量性状进行独立分析。随后，进行判别分析。判别分析结果表明，前4个判别函数解释了总变异的46%。对种群间总体隶属度的分析表明，在87%的情况下，个体被正确分类。各变量与干旱性指数呈显著的Pearson线性相关，与枝厚、干径呈正相关。来自Tierra Blanca的种群表现出异常行为，因为枝的厚度和果实大小的变化，这可能与个体的可塑性有关，以获得更多的水，而在Los Vallejo，这种分离可能是由于管理和使用的选择。其余居群在没有分离的情况下表现出一定的形态变异。

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来源期刊

Anales Del Jardin Botanico De Madrid PLANT SCIENCES-

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Anales del Jardín Botánico de Madrid features original and unpublished articles in fields such as taxonomy and systematics of all plant groups and fungi, including related fields like biogeography, bioinformatics, conservation, ecophysiology, phylogeny, phylogeography, functional morphology, nomenclature and plant-animal relations, as well as reviews and summary works. Anales del Jardín Botánico de Madrid is published half-yearly, with two issues appearing in June and December.