A numerical taxonomic study of the family Zygophyllaceae from Egypt

Khalik, Kadry N. Abdel

doi:10.1590/s0102-33062012000100017

Cited by 8 publications

(4 citation statements)

References 15 publications

(19 reference statements)

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“…The pollen exine ornamentations are of a significant role in delimitation of the some closely related taxa in Cruciferae (Khalik et al, 2002). The present communication reveals that the pollen ornamentations of genus Aethionema are reticulate, coarsely reticulate, and micro-reticulate (Table 2).…”

Section: Resultssupporting

confidence: 48%

Palynological features of eleven <i>Aethionema</i> taxa from Turkey and their systematic implications

Karaismailoğlu

2017

Bangladesh J. Plant Taxon

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Pollen morphology of 11 taxa, including 2 endemic of the genus Aethionema W.T. Aiton from Turkey was examined under light and scanning electron microscopes. The pollens of Aethionema are mostly isopolar and bilaterally symmetric; spheroidal, prolate, perprolate and subprolate with the polar axes 14.07-26.41 µm and the equatorial axes 7.85-22.02 µm; mostly tricolpate, rarely 2-colpate; surface ornamentation is micro or macro reticulate. The exine thickness varies between 0.66 and 1.91 µm, and in tine thickness ranges from 0.27 to 0.85 µm. It is found that dimension of pollen grains, surface ornamentation, apocolpidium and amb diameter are taxonomically significant.

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Section: Resultssupporting

confidence: 48%

Palynological features of eleven <i>Aethionema</i> taxa from Turkey and their systematic implications

Karaismailoğlu

2017

Bangladesh J. Plant Taxon

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“…Genetic investigation of F 1 , F 2 and backcross populations acquired from the cross RDV29 (highly resistant) x RSEJ775 (highly susceptible) for two seasons showed that the resistance is administrated by two genes through gene dosage and semi-dominant effect". However, according to Khalik [55]) the B. juncea plant's physical characteristics, such as the numbers of non-glandular trichomes on plants, may also be connected to the resistance to powdery mildew. A larger density of nonglandular trichomes may increase the risk of fungal infections because they are able to catch airborne particles like fungus spores [56].…”

Section: Field Screeningmentioning

confidence: 99%

Selection of Powdery Mildew Resistant Brassica Genotypes Based on Disease Indexing and Microsatellite Markers

Shrivastava

Tripathi

Tiwari

et al. 2023

CJAST

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Powdery mildew disease of oilseed mustard caused by Erysiphe cruciferarum is a primary reason of yield reduction not only in India but also throughout the world. Identification and cultivation of resistant mustard genotypes against powdery mildew is the only way to overcome this challenge. In the present investigation, we targeted to screen 75 Brassica genotypes against powdery mildew based on disease indexing under field conditions and gene-specific molecular markers. Disease reaction on both the cotyledonary and true leaves was screened with using a modified 0-9 scale score as well as with nineteen disease linked microsatellite markers. In disease indexing under field conditions, genotypes viz., L-4 and PC-5 were identified as immune, China and RP-9 were considered as highly resistant and GSC-7 and PC-6 were recognized as resistant whilst genotypes i.e., RB-50, Pusa Bold, WRR-10 and GSL-1 were accredited as moderately resistant. Molecular markers based UPGMA dendrogram classified Rohini, WRR-22, PC-6, PusaBold, China, WRR-8, GSL-1, WRR-7, RH-749, L-4 and RB-50 as highly resistant mustard genotypes. In addition, disease linked marker cnu_m616 had the highest polymorphic information content (0.75) with greatest ability to differentiate resistant genotypes from susceptible genotypes, may be employed directly in mustard breeding programmes in future.

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“…loczyi is a C4 herbaceous plant with a life history of one to two years [39,40]. With seventeen species, two subspecies, and three varieties found in China, this genus comprises around 150 species throughout the Old World [38,41,42]. The family of Zygophyllaceae is not only widespread but also prevalent in arid and semi-arid regions, particularly deserts with seasonal dryness [41].…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Phylogenetic Analysis of Zygophyllum loczyi in Northwest China’s Deserts Based on the Resequencing of the Genome

Wei,

Liu,

Wang

et al. 2023

Genes

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In order to study the genetics of local adaptation in all main deserts of northwest China, whole genomes of 169 individuals were resequenced, which covers 20 populations of Zygophyllum loczyi (Zygophyllales: Zygophylaceae). We describe more than 15 million single nucleotide polymorphisms and numerous InDels. The expected heterozygosity and PIC values associated with local adaptation varied significantly across biogeographic regions. Variation in environmental factors contributes largely to the population genetic structure of Z. loczyi. Bayesian analysis performed with STRUCTURE defined four genetic clusters, while the results of principle component analysis were similar. Our results shows that the Qaidam Desert group appears to be diverging into two branches characterized by significant geographic separation and gene flow with two neighboring deserts. Geological data assume that it is possible that the Taklamakan Desert was the original distribution site, and Z. loczyi could have migrated later on and expanded within other desert areas. The above findings provide insights into the processes involved in biogeography, phylogeny, and differentiation within the northwest deserts of China.

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A numerical taxonomic study of the family Zygophyllaceae from Egypt

Cited by 8 publications

References 15 publications

Palynological features of eleven <i>Aethionema</i> taxa from Turkey and their systematic implications

Palynological features of eleven <i>Aethionema</i> taxa from Turkey and their systematic implications

Selection of Powdery Mildew Resistant Brassica Genotypes Based on Disease Indexing and Microsatellite Markers

Genetic Diversity and Phylogenetic Analysis of Zygophyllum loczyi in Northwest China’s Deserts Based on the Resequencing of the Genome

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