Seed Morphology of Some Species of &amp;lt;i&amp;gt;Indigofera&amp;lt;/i&amp;gt; (Fabaceae) from Saudi Arabia (Identification of Species and Systematic Significance)

Al-Ghamdi, Faraj A.

doi:10.4236/ajps.2011.23057

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…Seed size varies significantly among the examined taxa; the giant seeds in I. coerulea have a diameter of 2.37 × 2.38 mm, and the smallest seeds measure 0.75 × 0.68 mm in I. colutea. These findings agree with (Hosni, 2000;Al-Ghamdi, 2011;Elkordy et al, 2022) (Table 3).…”

Section: Habitatsupporting

confidence: 90%

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

Osman,

Badry,

Gafar

2023

Egyptian Academic Journal of Biological Sciences, H. Botany

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This study presents a taxonomic revision of the genus Indigofera L. (tribe Indigofereae, subfamily Faboideae, Fabaceae) in Egypt. The revision is based on 58 specimens representing 13 taxa of Indigofera collected from different locations and habitats. The morphological characteristics of the vegetative and reproductive parts, such as indumentum; leaf shape, and size; stipule shape and length; calyx shape and length; corolla color, shape, and size; pod and seeds (color, shape, and size) were proved to have high taxonomic significance in distinguishing the species belonging to the genus Indigofera. Generally, all parts of the plant are covered with dense white two-armed hairs, which give the plant a silvery appearance. In Indigofera cordifolia B. Heyne ex Roth, the leaves are unifoliolate, but they are compound among the other investigated species. An artificial key to the studied taxa, full species description and illustrations, local and global distribution, habitat, and conservation status are provided to facilitate the identification and recognition of these species. Ahmed K. Osman et al.micromorphological traits like seed coat sculpture and the characteristics of the leaf epidermal cells, have the most significant systematic value. However, her study did not update the morphological descriptions of the genus Indigofera in Egypt. Thus, the current study aims to employ the macro and micromorphological characteristics in updating the descriptions of the Egyptian Indigofera and update their identification key as well. MATERIALS AND METHODS Plant Materials:Plant materials (mature leaves and stems) were taken from previously collected herbarium specimens in the herbaria of Aswan University (ASW), South Valley University, Assiut University (ASTU), and Cairo University (CAI) in Egypt (herbarium acronyms follow (Thiers, 2023). Plant taxa were reviewed according to the available literature (Boulos, 1999(Boulos, , 2000(Boulos, , 2002(Boulos, , 2005Täckholm, 1974). The taxonomic names were updated according to Plants of the World Online (POWO, 2023) provided by the Royal Botanic Gardens, Kew. Methods For Morphological Studies: Macro-Morphological Characters:The macro-morphological characteristics of the species under study, including their leaves, stems, inflorescences, floral components, and fruits were examined using a Ray Wild stereomicroscope. The dried plant material was either examined immediately or placed in heated lactic acid for 1-2 minutes before examination. Dimensions of the leaves, petioles, and stipules were measured by using a ruler. In contrast, the floral components (epicalyx, calyx lobes, corolla, staminal tube, stamens, and styles) and the fruits were measured using ImageJ v1.45 (Schneider et al., 2012). A total of 58 plant samples from 13 taxa of Indigofera were described. The conservation status of the studied taxa in Egypt was assessed according to the International Union for Conservation (IUCN, 2022). Macrophotography was performed with a Nikon D600 digital camera (Nikon Inc., Japan).

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Section: Habitatsupporting

confidence: 90%

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

Osman,

Badry,

Gafar

2023

Egyptian Academic Journal of Biological Sciences, H. Botany

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“…Seed shapes and surface sculpturing were classified according to previous studies on the microscopic morphology of Fabaceae seeds ( Bojňanský and Fargašová 2007 ; Vural et al 2008 ; Al-Ghamdi 2011 ; Meyers et al 2013 ; Erkul et al 2015 ). Based on previous studies and observations of seed morphology in the genus Oxytropis , seven seed traits, including four quantitative and three qualitative traits, were selected for morphometric analysis in the present study ( Erkul et al 2015 ).…”

Section: Materials and Methodsmentioning

confidence: 99%

Numerical analyses of seed morphology and its taxonomic significance in the genus Oxytropis DC. (Fabaceae) from northwestern China

Xiang¹,

Liu²,

Li³

et al. 2023

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The lack of diagnostic taxonomic characteristics in some species complexes leave the species delimitation of Oxytropis DC. unresolved. Seed morphological features have proved to be useful diagnostic and taxonomic characteristics in Fabaceae. However, there are few systematic studies on the seed characteristics of Oxytropis. Here, we used scanning electron and stereoscopic microscopy to investigate the seed characteristics of 35 samples obtained from 21 Oxytropis species from northwest China. Our examination showed two main types of hilum positions, terminal and central, and five different types of seed shapes: prolonged semielliptic, reniform, prolonged reniform, quadratic, and cardiform. Seven different sculpturing patterns were identified: scaled, regulated, lophate with stellated testa cells, simple reticulate, rough, compound reticulate, and lophate with rounded testa cells. The seeds ranged from 1.27 to 2.57 mm in length and from 1.18 to 2.02 mm in width, and the length-to-width ratio ranged from 0.89 to 1.55 mm. The seed shape was constant within species and was useful for species delimitation within the genus Oxytropis when combined with other macroscopic traits. In contrast, the sculpturing patterns were highly variable at the species level and could not be used for species identification. Results of the cluster analysis and principal component analysis (PCA) indicated that the seed traits of Oxytropis species are useful for taxa identification at the species level, but have low taxonomic value at the section level.

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“…Using seed traits to assess genetic diversity in the germplasm is advantageous in comparison with the use of other plant organs, as seeds are easy to collect and store 24 . More importantly, seed morphological traits can be utilized for species identification as well as selection criteria in crop improvement programs 25,26 . The nuclear DNA ITS and chloroplast DNA mat K have been widely applied in studies of inferring phylogenetic relationships at lower taxonomic levels and have been successfully used to analyze plant systematics 27–29 .…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity, phylogenetic structure and development of core collections in Melilotus accessions from a Chinese gene bank

Zhang¹,

Bai²,

Wu³

et al. 2019

Sci Rep

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Melilotus is an important forage legume, with high values as feed and medicine, and widely used as green manure, honey plant, and wildlife habitat enhancer. The genetic diversity, structure and subdivision of this forage crop remain unclear, and plant genetic resources are the basis of biodiversity and ecosystem diversity and have attracted increasing attention. In this study, the whole collection of 573 accessions from the National Gene Bank of Forage Germplasm (NGBFG, China) and 48 accessions from the National Plant Germplasm System (NPGS, USA) in genus Melilotus were measured with respect to five seed characters: seed length, width, width-to-length ratio, circumference and 100-seed weight. Shannon’ genetic diversity index (H’) and phenotypic differentiation (Pst) were calculated to better describe the genetic diversity. The ITS and matK sequences were used to construct phylogenetic trees and study the genetic relationships within genus Melilotu. Based on seed morphology and molecular marker data, we preliminarily developed core collections and the sampling rates of M. albus and M. officinalis were determined to be 15% and 25%, respectively. The results obtained here provide preliminary sorting and supplemental information for the Melilotus collections in NGBFG, China, and establish a reference for further genetic breeding and other related projects.

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Seed Morphology of Some Species of <i>Indigofera</i> (Fabaceae) from Saudi Arabia (Identification of Species and Systematic Significance)

Abstract: ABSTRACT

Cited by 6 publications

References 3 publications

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

Numerical analyses of seed morphology and its taxonomic significance in the genus Oxytropis DC. (Fabaceae) from northwestern China

Genetic diversity, phylogenetic structure and development of core collections in Melilotus accessions from a Chinese gene bank

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Seed Morphology of Some Species of &lt;i&gt;Indigofera&lt;/i&gt; (Fabaceae) from Saudi Arabia (Identification of Species and Systematic Significance)

Abstract: ABSTRACT

Cited by 6 publications

References 3 publications

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

Macromorphological Revision of Indigofera L. (Faboideae, Fabaceae) in Egypt

﻿Numerical analyses of seed morphology and its taxonomic significance in the genus Oxytropis DC. (Fabaceae) from northwestern China

Genetic diversity, phylogenetic structure and development of core collections in Melilotus accessions from a Chinese gene bank

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Seed Morphology of Some Species of <i>Indigofera</i> (Fabaceae) from Saudi Arabia (Identification of Species and Systematic Significance)

Numerical analyses of seed morphology and its taxonomic significance in the genus Oxytropis DC. (Fabaceae) from northwestern China