Search or add a thesis

Advanced Search (Beta)
Home > Molecular Phylogeny of Artemisia Subgenus Seriphidium Asteracea

Molecular Phylogeny of Artemisia Subgenus Seriphidium Asteracea

Thesis Info

Access Option

External Link

Author

Malik, Sadia

Program

PhD

Institute

National University of Sciences & Technology

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Virology & Immunology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11708/1/Sadia%20Malik%202019%20Virology%20NUST%20isb%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726713676

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


Members of Artemisia (Asteraceae) are of great economic, ethnobotanical and medicinal importance. There are about 500 species distributed throughout the world except for Antarctica. Morphological, anatomical, cytological, palynological, genomic and physiological techniques are being used from ancient times for identification and natural classification of these plants but still have restrictions. The current study will help out in resolving the taxonomic complexities of the genus Artemisia sensu lato with an emphasis on subgenus Seriphidium sensu stricto and point out the potential molecular taxonomic markers. Artemisia subg. Seriphidium is one of the largest groups within Artemisia, encompassing more than one hundred species, some of them having considerable ecological and economical importance. However, the evolution of subg. Seriphidium has received less attention in comparison to other subgenera of Artemisia, probably, apart from the difficulty of sampling throughout its very large distribution area, because of the low molecular and morphological variability observed in previous studies. Here, thorough taxonomic sampling within both Artemisia and subg. Seriphidium is used to reconstruct the evolutionary history of the subgenus, employing nuclear and plastid DNA sequences as well as various phylogenetic, biogeographic and diversification dynamics tools to analyze the data. The results show that subg. Seriphidium is not monophyletic but segregated into two main clades: one large monophyletic group corresponding to the formerly recognized sect. Seriphidium and a second, small clade, phylogenetically distant from the first. Biogeographic and diversification analyses indicate that rapid radiation of species within the sect. Seriphidium occurred in Central Asia during the Miocene-Pliocene transition. The results of our biogeographic analysis suggest that this diversification process started around the Tian-Shan, Pamir and Hindu Kush mountain ranges, subsequently expanding into the Eurasian continent. Finally, the study uncovered numerous incongruences between taxonomic and genetic information in several sect. Seriphidium species, which could be explained by morphological uniformity, hybridization and/or incomplete lineage sorting processes. Moreover, the study researches the systematic position of members of Artemisia from Pakistan using molecular data. Furthermore, the research strongly supported the inclusion of Seriphidium within Artemisia. More investigation encompassing extensive sampling from numerous biogeographic regions and markers that are more variable would be necessary to disentangle systematic affinities within the genus.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

آرزوؔ لکھنوی

آرزوؔ لکھنوی
جناب آرزوؔ جلال لکھنوی کے جانشین اور اردو زبان و ادب کے ماہر و محقق تھے اس پر ان کی نگاہ بڑی وسیع تھی، انہوں نے اردو شاعری میں زبان کی سادگی و سہولت یا موجودہ اصطلاح میں ہندوستانیت کا نیا نمونہ قائم کیا، وہ حتی الامکان عربی اور فارسی کے مشکل الفاظ اور ترکیبوں سے پرہیز اور خالص ہندوستانی الفاظ استعمال کرتے تھے، جن شعراء نے ان کی تقلید کی کوشش کی وہ کامیاب نہ ہوسکے اور ان کی شاعری یا ہندی کوتاہ بن گئی یا بے رنگ و بے مزہ ہوگئی، آرزو کی یہ خصوصیت تھی کہ انہوں نے زبان کی ہندوستانیت کے ساتھ اردو شاعری کا آب ورنگ اور اس کی دلآویزی قائم رکھی، جو زبان پر ان کی غیر معمولی قدرت کا ثبوت ہے، انہوں نے اپنے کلام کے کئی مجموعے فغانِ آرزو، جہان آرزو، اور سریلی بانسری یادگار چھوڑے ہیں، ان دونوں اساتذہ کے بعد لکھنو پرانی یادگار سے خالی ہوگیا، بلکہ ان پر اس دورہی کا خاتمہ ہوگیا ، اﷲ تعالیٰ ان کی مغفرت فرمائے۔
(شاہ معین الدین ندوی، مئی ۱۹۵۱ء)

 

Prevention Models of Occupational Contact Dermatitis in Beauty Salon Employees of Kendari City

This study aims to determine the effect of modifying factors, perceived vulnerability, perceived seriousness, perceived barriers and encouragement to prevent occupational contact dermatitis on beauty salon employees in Kendari City. This research is a quantitative study with a cross-sectional study approach using an explanative survey research design with a sample size of 100 respondents. The sampling technique used purposive random sampling. The data was collected by means of a questionnaire. Data analysis in this study used the SPSS program and Partial Least Squares (PLS). The results of this study indicate that there is a significant influence between modifying factors on perceptions of seriousness and barriers, on perceptions of vulnerability, there is a significant influence between perceptions of vulnerability, seriousness, barriers, encouragement on the prevention of occupational contact dermatitis.

Developing Effective Corporate Leadership Using Emotional Intelligence for High Performance Organizations

The thesis has two primary foci: (1) To identify issues related to the development of effective corporate leadership for achieving high performance organizations, and (2) To study emotional intelligence with respect to effective corporate leadership and its outcomes in the shape of organizational performance. Numerous tests have been developed to appraise El, among them, two most important are; MSCEIT and ESCI, ability and mixed methods respectively. ESCI was employed in the study due to its pertinence to business world; to assess effective corporate leadership, various aspects were observed including personal, interpersonal, managerial and societal effectiveness; and high performance organization was reviewed through aspects including corporate reputation, employee commitment, market performance and financial performance. Emotional intelligence was considered as predictor variable while personal effectiveness, interpersonal, managerial and social effectiveness were considered as predicted variables with organisational performance as an outcome variable. Corporate leaders from various business organizations were selected for the formation of sample. Likert scale based questionnaire was developed and administered through various ways; by hand, through postal services, by electronic mails and through online (website). Around 1171 questionnaires were sent to corporate leaders of the organizations listed in Islamabad Stock Exchange (ISE), Pakistan. The participants, who responded back, were sent 959 questionnaires but 331 questionnaires were received back after a period of a year time generating 28% response rate. A statistical package for social sciences, version-19 and SmartPLS were employed for analysis. Eight hypotheses were developed to test the relationship of El with ECL, and 1--IPO as outcome. SEM and regression analysis supported the proposed significant relationship in the hypotheses, and correlation analysis depicted the positive association as well. Results suggested the development of corporate leadership to the level of effectiveness through augmentation of emotional intelligence, in order to achieve high performance organisation.