Publications by authors named "Mohamed H Amar"

Article Synopsis
  • Abnormal pollination and hybridization cause unusual embryo development, leading to fruit abortion in certain peach cultivars.
  • A comprehensive analysis of transcriptome and hormone profiles showed that aborting fruits (AF) had inhibited growth due to changes in key genes and hormone levels, particularly a higher concentration of abscisic acid (ABA).
  • The study suggests that ABA promotes the expression of the KIRA1-LIKE1 gene, which may interfere with normal fruit development and contribute to fruit drop (abscission).
View Article and Find Full Text PDF

is a mono-genus belonging to the Moringaceae family, which includes 13 species. Among them, is plant species native to the Arabian Peninsula, Southern Sinai in Egypt, and the Horn of Africa, and comprehensive studies on its nutritional, industrial, and medicinal values have been performed. Herein, we sequenced and analyzed the initial complete chloroplast genome of .

View Article and Find Full Text PDF

Salvia officinalis is one of the most important medicinal and aromatic plants in terms of nutritional and medicinal value because it contains a variety of vital active ingredients. Terpenoid compounds, particularly monoterpenes (C10) and sesquiterpenes, are the most important and abundant among these active substances (C15). Terpenes play a variety of roles and have beneficial biological properties in plants.

View Article and Find Full Text PDF

Background: Releasing the draft genome of sweet orange provides useful information on genetic structure and molecular marker association with heritable breeding traits in citrus species and their structures. Last decades, microsatellite and retrotransposons are well known as a significant diverse component of the structural evolution. They represented the most potent elements for assessing sustainable utilization of the complicated classification in citrus breeding.

View Article and Find Full Text PDF

Background: The Capparaceae family is commonly recognized as a caper, while Cleomaceae represents one of small flowering family within the order Brassicales. Earlier, Cleomaceae was included in the family Capparaceae; then, it was moved to a distinct family after DNA evidence. Variation in habits and a bewildering array of floral and fruit forms contributed to making Capparaceae a "trash-basket" family in which many unrelated plants were placed.

View Article and Find Full Text PDF

Background: Chloroplast genome sequencing is becoming a valuable process for developing several DNA barcodes. At present, plastid DNA barcode for systematics and evolution in flowering plant rely heavily on the use of non-coding genes. The present study was performed to verify the novelty and suitability of the two hotspot barcode plastid coding gene ycf1 and ndhF, to estimate the rate of molecular evolution in the Prunus genus at low taxonomic levels.

View Article and Find Full Text PDF

Peach () is a climacteric fruit with a relatively short shelf life due to its fast ripening or softening process. Here, we report the association of gene families encoding ethylene insensitive-3 like (EIL) and ethylene response factor (ERF) with fruit ripening in peach. In total, 3 and 12 PpERFs were highly expressed in fruit, with the majority showing a peak of expression at different stages.

View Article and Find Full Text PDF

Adaptation to environmental changes is an important fitness trait for crop development. Photoperiod is an essential factor in seasonal control of flowering time. Sensing of day-length requires an interaction between the Photoperiod and the endogenous rhythms that is controlled by plant circadian clock.

View Article and Find Full Text PDF

The present study aims to analyse phylogenetic relationships, using internal transcribed spacer sequence data of ribosomal DNA (rDNA), across 24 species and close relatives by the evaluation of several parameters such as nucleotide substitution (), nucleotide diversity (π) and the estimated values of transition/transversion bias (). The observed results indicated the presence of a wide divergence pattern of rDNA in subfamily Aurantioideae. Maximum parsimony (MP) analysis inferred divergence pattern in the genus.

View Article and Find Full Text PDF