دراسة الصفات المورفولوجية لحبات طلع بعض أنواع جنس السنديان وأهميتها التصنيفية في سورية

الموضوعات

زراعة

روابط وملفات

التعريف والنوع

رقم الوثيقة

f9f36dd7-2f1d-48a3-af15-22c489a18ca1

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1963932_1.pdf

بيانات النشر

ترجمة العنوان

Pollen Morphology Study of some Quercus L. Species in Syria And Assessment Of Taxonomic Value

ألقاب المؤلفين

[{"name_ar":" ثروات حبيب إبراهيم","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":" روعة محمد أحمد","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة الصفات المورفولوجية لحبات طلع بعض أنواع جنس السنديان وأهميتها التصنيفية في سورية

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

Quercus L. is a genus belongs to the Fagaceae famiy and includes a big number of species widely spread of different parts of the world. Some of which were recorded in the natural plant communities in Syria .And in view of the great similarity of the species of this genus-which may lead to problems of taxonomic confusion in the definition of some of these species with the possibility of the existence of new plant classification units that may follow this genus in Syria.The goal of this research was to deepen the taxonomic study of species grown in Syria which belong to this genus in order to add new classification criteria, in addition to other criteria used in classification, which would contribute to identifying and confirming the taxonomic status of a number of forest species belonging to the Quercus L genus collected from different locations through studying the morphological characteristics of the pollens of these species using modern microscopes (LM and SEM)The study also aimed at determining the degree of the genetic relation among studied species using the technique of Inter Simple Sequence Repeats (ISSR).The study conducted in laboratories of wood and biotechnology of Agriculture Faculty at Damascus University during 2013-2015 included the following species of this genus: Q. calliprinos Webb. , Q. infectoriaOliv., Q. cerris L. subsp. pseudocerris(Boiss.) Chalabi ,and Q. libaniOliv .The polar and equatorial diameters of the pollen grain were measured in this study, in addition to describing the exine ornamentation The results of studying the the morphological characteristics via the LM after a X400 magnification of the pollens grains of Quercus calliprinos and Q.infectoria showed that they are tricolporate of a Oblate-spheroidal shape while the pollen grains of Quercus cerris subsp pseudocerris and Q.libanicontained Tricolporate and Tetracolporate holes with a Oblate-spheroidal shape.The results of the studyusing the SEM showed that the shapes of the studied pollen grains were/ singular/ prolate containing different sizes of holes and warts on their outer surface. The morphological features of the studied pollens such as the shape, the thickness of exine and the distance between germination slots showed overlapping between the studied species, which indicates their limited classification significance .On the other hand, the ISSR technique was able to genetically distinguish between samples studied, where 10 primers were used for this purpose resulting in a sum of 97 bundles which proved their effectiveness in giving polymorphism with a percentage of 86.45.%The number of each primer’s bundles varied from four bundles with the primer ISSR9 and 14 bundles with the primer ISSR4 with an average of 9.7 bundles for each primer, The Lowestpolymorphism percentage was 70% with ISSR2 and the biggest was with the primers ISSR1, ISSR3, ISSR8 and ISSR9 (100%).The results referred to the genetic difference among the studied samples belonging to Quercus L. in Syria

كلمات الباحثين

Genetic similarity, ISSR, LM, Morphological characteristics, Pollens, Quercus, SEM, جنس السنديان, حبات الطلع, صفات مورفولوجية, قرابة وراثية, ماسح, مجهر الكتروني, مجهر ضوئي

إشراف وإعداد

الإشراف

ثروات حبيب إبراهيم

الإعداد

روعة محمد أحمد

الاقتباسات الببليوغرافية