Determination of Wheat Genome Evolution by Molecular Aaalysis of the 5s-DNA-1s Spacer Region

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UMIST , Manchester
StatementPhilip Thomas Reilly ; supervised by Terry Brown.
ContributionsBrown, Terry., Biomolecular Sciences.
ID Numbers
Open LibraryOL17576564M

Cytogenetic methods such as chromosome banding and in situ hybridization remain relevant in the post-genomic era, especially for allopolyploid species where genome duplication in some cases makes it difficult to assess the reorganization of chromosomes during evolution.

In this review, we give a brief description of cytogenetic methods for the analysis of homoeological chromosomes in :// Molecular evolution of 5S RNA Article (PDF Available) in MGG - Molecular and General Genetics (2) June with 36 Reads How we measure 'reads' Evolution of the S-genome species was studied using Giemsa C-banding and fluorescence in situ hybridization (FISH) with DNA probes representing 5S (pTa) A PCR system was designed to amplify 5S spacer rDNA specifically from homeologous chromosome 1 in a variety of species representative of the Aegilops and Triticum :// Polyploid hybrids represent a rich natural resource to study molecular evolution of plant genes and genomes.

Here, we applied a combination of karyological and molecular methods to investigate chromosomal structure, molecular organization and evolution of ribosomal DNA (rDNA) in nightshade, Atropa belladonna (fam.

Solanaceae), one of the oldest known allohexaploids among flowering :// Appels, R. and Dvořák, J. () The wheat ribosomal DNA spacer: its structure and variation in populations and among species. K.S. () Identification and physical localization of useful genes and markers to a major gene-rich region on wheat group 1S chromosomes.

Genetics– Dvořák J. () Triticeae Genome Studies on the origin and evolution of tetraploid wheats based on the internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA June Theoretical and Applied Genetics () High molecular weight glutenin subunits (HMW-GSs), encoded by the genes at Glu-1 loci in wheat and its related species, are significant in the determination of grain processing quality.

However, the diversity and variations of HMW-GSs are relatively low in bread wheat.

Description Determination of Wheat Genome Evolution by Molecular Aaalysis of the 5s-DNA-1s Spacer Region FB2

More interests are now focused on wheat wild relatives in Triticeae. The genus Aegilops represents an important germplasm for The chloroplast view of the evolution of polyploid wheat.

introgression into the wheat genome. The molecular markers developed in our study will be useful in the subsequent steps of chromosome Comparative genetic analysis of the Aegilops longissima and Ae.

sharonensis genomes with common wheat Article in Theoretical and Applied Genetics (4) January with 80 Reads Molecular Evolution of Receptor-Like Kinase Genes in Hexaploid Wheat.

Details Determination of Wheat Genome Evolution by Molecular Aaalysis of the 5s-DNA-1s Spacer Region FB2

Independent Evolution of Orthologs after Polyploidization and Mechanisms of Local Rearrangements at Paralogous Loci Molecular analyses of common wheat genome and genomes of related species confirmed the ancestry of wheat B-genome from Ae. speltoides or the species close to it (Talbert et al., ; Petersen et The molecular cytogenetic analysis of the Allium genome has revealed a great species-specific diversity of the chromosome structure, which once again convinces us in the complexity of the plant genome evolution.

For the future, much more molecular cytogenetic markers are needed to assist whole-genome assembly in the ongoing SEQUON—Onion http错误 没有找到您要访问的页面,请检查您是否输入正确url。 请尝试以下操作: 如果您已经在地址栏中输入该网页的地址,请确认其拼写正确。 rRNA genes consist of long tandem repeats clustered on chromosomes, and their products are important functional components of the ribosome.

In common wheat (Triticum aestivum), rDNA loci from the A and D genomes were largely lost during the evolutionary process. This biased DNA elimination may be related to asymmetric transcription and epigenetic modifications caused by the polyploid Rampitsch C et al.

() A matrix attachment region is located upstream from the high-molecular weight glutenin geneBx7 in wheat (Triticum aestivum L.) Genome Hang A et al. () Random amplified polymorphic primer-generated embryo DNA polymorphisms among 16 North American malting barley cultivars Journal of the American Society ?class=keyword;name=pcr;show=quotedin.

Molecular markers from the transcribed_生物学_自然科学_专业资料 48人阅读|1次下载 Molecular markers from the transcribed_生物学_自然科学_专业资料。Funct Integr Genomics () 4: – DOI /s REVIEW P. K Results. Molecular cloning and nucleotide sequencing of A. belladonna 45S rDNA repeats revealed a general structure characteristic of other Solanaceae species, and a very high sequence similarity of two length variants, with the only difference in number of short IGS subrepeats.

These results combined with the detection of three pairs of 45S rDNA loci on separate chromosomes, presumably Studies on the evolution of common wheat (16,41, 45, 47) have shown that some of the SSR loci found in a particular genome of a diploid species had been either lost, or mutated in the primer This study was conducted to elucidate the evolution of chromosomal diversification in eight species of Lilium by fluorescence in situ hybridization (FISH) technique using ribosomal DNA probes for the 5S rDNA and 45S rDNA.

A phylogenic tree was reconstructed based on the results of the sequence analysis of the non-transcribed spacer (NTS) and inter-transcribed spacer (ITS) :// Koller B, Delius H: Vicia faba chloroplast DNA has only one set of ribosomal RNA genes as shown by partial denaturation mapping and R-loop analysis.

Mol Gen Genet – (). Mol Gen Genet – (). With the development of next-generation sequencing technology, the amount of date palm (Phoenix dactylifera L.) genomic data has grown rapidly and yielded new insights into this species and its origins.

Here, we review advances in understanding of the evolutionary history of the date palm, with a particular emphasis on what has been learned from the analysis of genomic :// In common wheat (Triticum aestivum L.), allelic variations of Glu-A1 locus have important influences on grain end-use quality.

Among the three Glu-A1 alleles, Glu-A1a and -A1b encode the high-molecular-weight glutenin subunits (HMW-GSs) 1Ax1 and 1Ax2*, respectively, whereas Glu-A1c does not specify any subunit. Here, we detected a total of 11 Glu-A1 locus haplotypes (H1 to H11) in three wheat ?id=/ PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books.

Citations may include links to full-text content from PubMed Central and publisher web :// Introduction. Common wheat (Triticum aestivum, 2n = 42, AABBDD) is one of the most important staple food crops in the world, providing 20% of dietary energy and protein sources for over 60% of the world population [1, 2]um was originated ab years ago due to natural hybridization between tetraploid wheat (um, 2n = 28, AABB) and the D genome donor Aegilops tauschii (2n In comparison with retrotransposons, which comprise the majority of the Triticeae genomes, very few class 2 transposons have been described in these genomes.

Based on the recent discovery of a local accumulation of CACTA elements at the Glu-A3 loci in the two wheat species Triticum monococcum and Triticum durum, we performed a database search for additional such elements in Triticeae Investigation of distal repetitive sequences in the genus allium.

I show that some units have a Ty1/copia retrotransposon fragment in the intergenic\ud spacer region. Sequence analysis indicates that there was a single insertion followed by\ud amplification, probably involving homogenisation mechanisms.

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Molecular evolution and Here, we reported a whole-genome analysis of the Chinese perch OR repertoire. Our analysis identified a total of OR genes, including functional genes and 29 pseudogenes, and showed their genomic organization.

A phylogenetic tree was constructed, and the phylogenetic relationships of with at least one of the words. without the words. where my words occur Evaluation of chloroplast genome annotation tools and application to analysis of the evolution of coffee species Guyeux, Christophe, Charr, Jean-Claude, Tran, Hue T.

M., Furtado, Agnelo, Henry, Robert J., Crouzillat, Dominique, Guyot, Romain and Hamon, Perla () Evaluation of chloroplast genome annotation tools and application to analysis of.

A single chromosome of the grass species Festuca pratensis has been introgressed into Lolium perenne to produce a diploid monosomic substitution line (2 n = 2 x = 14).

In this line recombination occurs throughout the length of the F. pratensis/L. perenne bivalent. The F. pratensis chromosome and recombinants between it and its L.

perenne homeologue can be visualized using genomic in situ This chapter provides a thorough and critical review of the current literature available regarding structure and expression of nuclear genes. It also Zwaenepoel, A., & Van de Peer, Y. (). wgd-simple command line tools for the analysis of ancient whole genome duplications.

BIOINFORMATICS, 35 (12), – MOTIVATION: Ancient whole genome duplications (WGDs) have been uncovered in almost all major lineages of life on Earth and the search for traces or remnants of such events has