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13 results on '"Masood, Mariyam"'

6. A DNA barcode survey of insect biodiversity in Pakistan

Author

Ashfaq, Muhammad, primary, Khan, Arif M., additional, Rasool, Akhtar, additional, Akhtar, Saleem, additional, Nazir, Naila, additional, Ahmed, Nazeer, additional, Manzoor, Farkhanda, additional, Sones, Jayme, additional, Perez, Kate, additional, Sarwar, Ghulam, additional, Khan, Azhar A., additional, Akhter, Muhammad, additional, Saeed, Shafqat, additional, Sultana, Riffat, additional, Tahir, Hafiz Muhammad, additional, Rafi, Muhammad A., additional, Iftikhar, Romana, additional, Naseem, Muhammad Tayyib, additional, Masood, Mariyam, additional, Tufail, Muhammad, additional, Kumar, Santosh, additional, Afzal, Sabila, additional, McKeown, Jaclyn, additional, Samejo, Ahmed Ali, additional, Khaliq, Imran, additional, D’Souza, Michelle L., additional, Mansoor, Shahid, additional, and Hebert, Paul D. N., additional

Published
2022
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9. Occurrence and molecular identification of an invasive rice strain of fall armyworm Spodoptera frugiperda(Lepidoptera: Noctuidae) from Sindh, Pakistan, using mitochondrial cytochrome c oxidase I gene sequences

Author

Yousaf, Sumaira, Rehman, Abdul, Masood, Mariyam, Ali, Kazam, and Suleman, Nazia

Abstract

The fall armyworm (FAW), an invasive pest of maize, is an emerging threat in Southern Asia after America and Europe. Recently, this notorious pest has also been found in different areas of Pakistan. To assess its presence in Pakistan, a survey was carried out in the provinces of Punjab, Sindh, and Khyber Pakhtunkhwa during May–October 2019. We observed the highest incidence of FAW in Sindh with maximum impact in districts Tando-Allahyar and Hyderabad. These samples were identified as Spodoptera frugiperdaon the morphological and taxonomical bases. However, morphological identification of this pest is very difficult at early larval instars. Here, we use the mitochondrial cytochrome c oxidase I (COI) gene region for the precise identification of larva of this invasive pest at species level. Two different regions of COI gene (COI-5′ and COI-3′) were used as molecular markers for the identification of this species. DNA sequence similarity searches of the obtained COI gene sequences (NCBI GenBank Accession Nos. MW241537, MW241538, MW349515, MW349516, MW349493 and MW349494) revealed that genetically it is more than 99% identical to S. frugiperda. The phylogenetic analysis indicated it as the rice-strain (R-strain). Both 3′- and 5′-fragment tree topologies showed that the collected samples of the FAW species belong to the R-strain. To the best of our knowledge, this is the first report providing molecular evidence for the existence of R-strain of S. frugiperdathat was found feeding on maize crop in Sindh, Pakistan, using COI gene sequences as a marker.

Published
2021
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13. FREQUENCY OF CARIES IN LOWER ANTERIOR TEETH BONDED WITH FIXED ORTHODONTIC RETAINER.

Author

ZEESHAN, MUHAMMAD, MASOOD, MARIYAM, AKRAM, SANA, IRSHAD, NADIA, LONE, SAADIA BANO, and BUTT, AISHA ZIA

Subjects
ORTHODONTIC retainers, INCISORS, PERMANENT dentition, CORRECTIVE orthodontics, RANDOMIZED controlled trials, DENTAL enamel, MIXED dentition
Abstract

Objective was to determine the frequency of caries in lower anterior teeth bonded with fixed ortho-dontic retainer. It was a randomized controlled trial. This study was carried out at Department of Dentistry, Faryal Dental College, Sheikhupura from February 2022 to July 2022. Total 120 patients having age 15 to 25 years (permanent dentition) and orthodontically treated were enrolled in this study. Patients in Group I received bonded canine-to-canine retainers for their lower front teeth following orthodontic treatment. Group II comprised of patients who had removable retainers. Collected data was entered in SPSS for data analysis. The results demonstrated an increased frequency of caries among our research participants for cen-tral (38.33%) and lateral incisors (31.66%) in Group I when compared to Group II (20.0% and 18.33%) respectively. It may be stated that the experimental group's mandibular central and lateral incisors experienced an equivalent amount of caries compared to one another but more frequently than canines. [ABSTRACT FROM AUTHOR]

Published
2023

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