نتایج جستجو برای: aegilops

تعداد نتایج: 995  

2017
Chad Jorgensen Ming-Cheng Luo Ramesh Ramasamy Mathew Dawson Bikram S. Gill Abraham B. Korol Assaf Distelfeld Jan Dvorak

Wild emmer (Triticum turgidum ssp. dicoccoides) is a progenitor of all cultivated wheat grown today. It has been hypothesized that emmer was domesticated in the Karaca Dağ region in southeastern Turkey. A total of 445 recombinant inbred lines of T. turgidum ssp. durum cv. 'Langdon' x wild emmer accession PI 428082 from this region was developed and genotyped with the Illumina 90K single nucleot...

Journal: :Journal of experimental botany 2008
D K Biswas H Xu Y G Li M Z Liu Y H Chen J Z Sun G M Jiang

Modern wheat (Triticum aestivum L.) is one of the most ozone (O(3))-sensitive crops. However, little is known about its genetic background of O(3) sensitivity, which is fundamental for breeding O(3)-resistant cultivars. Wild and cultivated species of winter wheat including donors of the A, B and D genomes of T. aestivum were exposed to 100 ppb O(3) or charcoal-filtered air in open top chambers ...

2010
Nobuyuki Mizuno Naoki Hosogi Pyoyun Park Shigeo Takumi

BACKGROUND Hybrid speciation is classified into homoploid and polyploid based on ploidy level. Common wheat is an allohexaploid species that originated from a naturally occurring interploidy cross between tetraploid wheat and diploid wild wheat Aegilops tauschii Coss. Aegilops tauschii provides wide naturally occurring genetic variation. Sometimes its triploid hybrids with tetraploid wheat show...

Journal: :Cytogenetic and genome research 2010
M Cifuentes V Garcia-Agüero E Benavente

Homoeologous metaphase I (MI) associations in hybrids between durum wheat and its wild allotetraploid relatives Aegilops neglecta, Ae. triuncialis and Ae. ventricosa have been characterized by a genomic in situ hybridization procedure that allows simultaneous discrimination of A, B and wild species genomes. Earlier results in equivalent hybrids with the wild species Ae. cylindrica and Ae. genic...

ارزانـی, احمد, حبیبی, فرشاد , رخزادی , اسعد, سید طباطبایی, بدرالدین ابراهیم, عرب بیگـی, محبوبه , مجیـدی, محمد مهدی,

Aegilops cylindrica species (CCDD, 2n = 4x = 28) is one of the wild relatives of wheat and hence known as a valuable source of genes related to biotic and abiotic stress tolerance. In this study genetic variation of 66 Aegilops cylindrica genotypes collected from west and northwestern of Iran was evaluated using quantitative and qualitative morphological traits. The results indicated that glume...

ژورنال: :دو فصلنامه تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران 2009
بهنام بخشی محمدجعفر آقایی محمدرضا بی همتا فرخ درویش

آجیلوپس سیلیندریکا (aegilops cylindrica host.) با فرمول ژنومی ccdd (2n=4x=28) یکی از خویشاوندان وحشی گندم نان می باشد که پراکنش وسیعی در خاورمیانه و غرب آسیا دارد و ایران بخش وسیعی از این منطقه را در بر می گیرد. مطالعه پراکنش جغرافیایی 359 نمونه از این گونه که در بانک ژن گیاهی ملی ایران نگهداری می شوند، نشان داد که بیشترین پراکنش این گونه، در شمال، شمال غرب و غرب ایران و کمترین پراکنش آن در منا...

Journal: :journal of agricultural science and technology 2013
m. r. naghavi m. ranjbar m. h. hassani m. j. aghaee m. bamneshin

in this study, 120 accessions of aegilops crassa collected from various geographical areas of iran were analyzed with respect to genome size and protein markers. a flow cytometry survey of these accessions revealed that one hundred and thirteen of the accessions were tetraploid and seven were hexaploid. moreover, these accessions revealed variations in high molecular weight glutenin subunit com...

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