نتایج جستجو برای: genetic diversity within species

تعداد نتایج: 2068858  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - پژوهشکده علوم محیطی 1389

چکیده ندارد.

Evaluation of genetic diversity is the key principal for plant breeding, providing an opportunity to discover novel characters and alleles for breeders. In the present study, 69 durum wheat genotypes were investigated for genetic diversity using several inter-simple sequence repeat (ISSR) markers. Sixteen ISSR primers amplified a total of 163 fragments, which out 160 fragments were polymorphic....

F. Zarei H. Hosseinzadeh Sahafi S. Farivar, Z. Jalil-Piran

The Japanese threadfin bream, Nemipterus japonicus, the most abundant and crucially economic Nemipterus species is widespread throughout the Indo-West Pacific. The species has been studied widely for various aspects but genetic studies are scanty. This preliminary study contributes to the species phylogeography through the study of the genetic diversity and historical demography of N. japonicus...

Journal: :journal of cell and molecular research 0
zeinab hosseinnia ali shabani hamed kolangi miandare

genetic diversity is one of the three levels of biodiversity. the aim of present study was to compare levels of genetic polymorphism between wild bream populations using seven microsatellite loci. genetic diversity was investigated by studying samples collected from two regions, the coast of chamkhale and bandaranzali of gilan province. a total of seven microsatellite loci (mfw7, mfw26, mcs1eh,...

2014
Fu Qin Wu Shi Kang Shen Xin Jun Zhang Yue Hua Wang Wei Bang Sun

Comprehensive studies on the genetic diversity and structure of endangered species are urgently needed to promote effective conservation and management activities. The big tree rhododendron, Rhododendron protistum var. giganteum, is a highly endangered species with only two known endemic populations in a small area in the southern part of Yunnan Province in China. Unfortunately, limited informa...

Farivar, S., Hosseinzadeh Sahafi, H., Jalil-Piran , Z., Zarei, F.,

The Japanese threadfin bream, Nemipterus japonicus, the most abundant and crucially economic Nemipterus species is widespread throughout the Indo-West Pacific. The species has been studied widely for various aspects but genetic studies are scanty. This preliminary study contributes to the species phylogeography through the study of the genetic diversity and historical demography of N. japonicus...

2016
Eric J. Fuchs Allan Meneses Martínez Amanda Calvo Melania Muñoz Griselda Arrieta-Espinoza

Wild crop relatives are an important source of genetic diversity for crop improvement. Diversity estimates are generally lacking for many wild crop relatives. The objective of the present study was to analyze how genetic diversity is distributed within and among populations of the wild rice species Oryza glumaepatula in Costa Rica. We also evaluated the likelihood of gene flow between wild and ...

Journal: :Genetics and molecular research : GMR 2015
F B Souza-Sobreira G B Souza C C G Rosado F D Miranda T C B Soares A B P L Gontijo

Bromeliads are greatly represented in the Atlantic Forest, although many species are threatened with extinction owing to habitat fragmentation and intense extraction for ornamental purposes. Therefore, it is necessary to conduct studies generating knowledge about genetic diversity and the distribution of this diversity among and within natural populations to establish conservation strategies. T...

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