首次报告大戟科大戟属植物种子超微雕刻及其分类学意义

IF 1.6 3区 农林科学 Q2 AGRONOMY Genetic Resources and Crop Evolution Pub Date : 2024-09-12 DOI:10.1007/s10722-024-02167-0
Hussain Shah, Mushtaq Ahmad, Muhammad Zafar, Ateef Ullah, Shabir Ahmad, Mona S. Alwahibi, Okezie Emmanuel, Mohamed S. Elshikh
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引用次数: 0

摘要

大戟科大戟属(Euphorbia L.)是世界各地众多栖息地中多种多样、无处不在的开花植物。这项研究旨在解决大戟科 31 个物种种子形态的分类意义问题。研究人员利用体视显微镜和扫描电子显微镜对种子和果核的微观和宏观形态特征进行了定性和定量研究。研究结果显示了种子特征的变化,如大小、形状、颜色、表面和种阜特征。这些特征通常是恒定的,有助于大戟科植物种子的鉴定和分类。在所研究的分类群中,种子表面表现出网状、宝石状、棍棒状、栉状、蜂窝状、疣状、颏状、网状、帚状、粗糙状和条纹状等变化。此外,还研究了所研究类群的心皮中的皱纹面、网状面、瘤状面、锐角面和粗糙面。此外,有些类群没有种阜。采用算术平均非加权成对分组法(UPGMA)和主成分分析法(PCA)分析了所研究类群种子的形态差异。聚类分析和 PCA 分析的树枝图和图谱结果显示,大戟科类群被分为两大类。提供了所有已知研究分类群的立体和扫描电子显微照片。
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First report of ultra-sculpturing and taxonomic implications of seed morphology of selected genus Euphorbia L

The genus Euphorbia L. characterizes a diverse and ubiquitous range of flowering plants across numerous habitats worldwide. The study aimed to resolve the taxonomic significance of seed morphology across 31 species within Euphorbia L. Qualitative and quantitative micro and macromorphological characteristics of seeds and caruncles were studied using both stereomicroscopy and scanning electron microscopy. The results of the study showed variation in seed characteristics such as size, shape, color, surfaces, and caruncle characteristics. These characteristics are often constant and useful in identification and classification in Euphorbia species. Seed surfaces represented variation from reticulate, gemmate, clavate, psilate, foveolate, verrucate, chinate, reticulate, baculate, scabrate, and striate among studied taxa. Additionally, rugose, reticulate, verrucose, acute, and scabrate surfaces were investigated in caruncle of studied taxa. Moreover, some taxa are caruncle free. The morphometric variation of the seeds among the studied taxa was analyzed using the unweighted pair group method with arithmetic mean (UPGMA) and principal component (PCA) analyses. The dendrogram and plot results from the cluster and PCA analyses showed that Euphorbia taxa were grouped into two major clusters. Stereo and Scanning electron micrographs are provided for all known studied taxa.

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来源期刊
Genetic Resources and Crop Evolution
Genetic Resources and Crop Evolution 农林科学-农艺学
CiteScore
4.10
自引率
10.00%
发文量
178
审稿时长
3 months
期刊介绍: Genetic Resources and Crop Evolution is devoted to all aspects of plant genetic resources research. It publishes original articles in the fields of taxonomical, morphological, physiological, biochemical, genetical, cytological or ethnobotanical research of genetic resources and includes contributions to gene-bank management in a broad sense, that means to collecting, maintenance, evaluation, storage and documentation. Areas of particular interest include: -crop evolution -domestication -crop-weed relationships -related wild species -history of cultivated plants including palaeoethnobotany. Genetic Resources and Crop Evolution also publishes short communications, e.g. newly described crop taxa, nomenclatural notes, reports of collecting missions, evaluation results of gene-bank material etc. as well as book reviews of important publications in the field of genetic resources. Every volume will contain some review articles on actual problems. The journal is the internationalized continuation of the German periodical Die Kulturpflanze, published formerly by the Institute of Plant Genetics and Crop Plant Research at Gatersleben, Germany. All contributions are in the English language and are subject to peer reviewing.
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