A Study on Genome Relationships in Hordeum parodii, Hordeum jubatum, Elymus trachycaulus and Elymus canadensis.
نویسندگان
چکیده
منابع مشابه
Untangling Nucleotide Diversity and Evolution of the H Genome in Polyploid Hordeum and Elymus Species Based on the Single Copy of Nuclear Gene DMC1
Numerous hybrid and polypoid species are found within the Triticeae. It has been suggested that the H subgenome of allopolyploid Elymus (wheatgrass) species originated from diploid Hordeum (barley) species, but the role of hybridization between polyploid Elymus and Hordeum has not been studied. It is not clear whether gene flow across polyploid Hordeum and Elymus species has occurred following ...
متن کاملReticulate Evolutionary History of a Complex Group of Grasses: Phylogeny of Elymus StStHH Allotetraploids Based on Three Nuclear Genes
BACKGROUND Elymus (Poaceae) is a large genus of polyploid species in the wheat tribe Triticeae. It is polyphyletic, exhibiting many distinct allopolyploid genome combinations, and its history might be further complicated by introgression and lineage sorting. We focus on a subset of Elymus species with a tetraploid genome complement derived from Pseudoroegneria (genome St) and Hordeum (H). We co...
متن کاملOrigin and Reticulate Evolutionary Process of Wheatgrass Elymus trachycaulus (Triticeae: Poaceae)
To study origin and evolutionary dynamics of tetraploid Elymus trachycaulus that has been cytologically defined as containing StH genomes, thirteen accessions of E. trachycaulus were analyzed using two low-copy nuclear gene Pepc (phosphoenolpyruvate carboxylase) and Rpb2 (the second largest subunit of RNA polymerase II), and one chloroplast region trnL-trnF (spacer between the tRNA Leu (UAA) ge...
متن کاملPhylogenetic analysis of Elymus (Poaceae) in western China.
Elymus L. is often planted in temperate and subtropical regions as forage. Species in the genus have 5 allopolyploid genomes that are found in the grass tribe Triticeae. To determine the phylogenetic relationships in Elymus species from western China, we estimated phylogenetic trees using sequences from the nuclear ribosomal internal transcribed spacer and non-coding chloroplast DNA sequences f...
متن کاملارزیابی روابط فیلوژنتیکی مولکولی ژن ACC در جنس‌های Hordeum، Leymus و Elymus
ژن تک نسخه پلاستیدی استیل کوآنزیم‌آ، اولین عامل کاتالیزی در بیوسنتز اسیدهای چرب، در مطالعه روابط فیلوژنتیکی، تکاملی و سیستماتیکی گندمیان توانایی زیادی دارد. احتمال اینکه، ژن‌های تک نسخه و کم نسخه دستخوش تکامل گروهی شوند کم است، بنابراین ACC ژن مهمی جهت مطالعه مبدأ و تکامل پلی پلوییدها محسوب می‌شود. در این تحقیق رابطه فیلوژنتیکی هفت گونه و زیرگونه‌ی جو‌های بومی ایران، (Hudson Hordeum m...
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ژورنال
عنوان ژورنال: CYTOLOGIA
سال: 1991
ISSN: 0011-4545,1348-7019
DOI: 10.1508/cytologia.56.431