Abstract:
:To gain insights into the structure and function of the wheat (Triticum aestivum L.) genomes, we identified 278 ESTs related to abiotic stress (cold, heat, drought, salinity, and aluminum) from 7671 ESTs previously mapped to wheat chromosomes. Of the 278 abiotic stress related ESTs, 259 (811 loci) were assigned to chromosome deletion bins and analyzed for their distribution pattern among the 7 homoeologous chromosome groups. Distribution of abiotic stress related EST loci were not uniform throughout the different regions of the chromosomes of the 3 wheat genomes. Both the short and long arms of group 4 chromosomes showed a higher number of loci in their distal regions compared with proximal regions. Of the 811 loci, the number of mapped loci on the A, B, and D genomes were 258, 281, and 272, respectively. The highest number of abiotic stress related loci were found in homoeologous chromosome group 2 (142 loci) and the lowest number were found in group 6 (94 loci). When considering the genome-specific ESTs, the B genome showed the highest number of unique ESTs (7 loci), while none were found in the D genome. Similarly, considering homoeologous group-specific ESTs, group 2 showed the highest number with 16 unique ESTs (58 loci), followed by group 4 with 9 unique ESTs (33 loci). Many of the classified proteins fell into the biological process categories associated with metabolism, cell growth, and cell maintenance. Most of the mapped ESTs fell into the category of enzyme activity (28%), followed by binding activity (27%). Enzymes related to abiotic stress such as beta-galactosidase, peroxidase, glutathione reductase, and trehalose-6-phosphate synthase were identified. The comparison of stress-responsive ESTs with genomic sequences of rice (Oryza sativa L.) chromosomes revealed the complexities of colinearity. This bin map provides insight into the structural and functional details of wheat genomic regions in relation to abiotic stress.
journal_name
Genomejournal_title
Genomeauthors
Ramalingam J,Pathan MS,Feril O,Miftahudin.,Ross K,Ma XF,Mahmoud AA,Layton J,Rodriguez-Milla MA,Chikmawati T,Valliyodan B,Skinner R,Matthews DE,Gustafson JP,Nguyen HTdoi
10.1139/g06-094subject
Has Abstractpub_date
2006-10-01 00:00:00pages
1324-40issue
10eissn
0831-2796issn
1480-3321pii
g06-094journal_volume
49pub_type
杂志文章相关文献
GENOME文献大全abstract::Elymus L. is the largest and most complex genus in the Triticeae tribe of grasses with approximately 150 polyploid perennial species occurring worldwide. We report here the first genetic linkage map for Elymus. Backcross mapping populations were created by crossing caespitose Elymus wawawaiensis (EW) (Snake River whea...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g11-045
更新日期:2011-10-01 00:00:00
abstract::Five wheat-barley translocations in a wheat background were characterized through the combination of cytogenetic and molecular genetic approaches. The wheat chromosome segments involved in the translocations were identified using sequential GISH and two-colour FISH with the probes pSc119.2 and pAs1. The barley chromat...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g02-068
更新日期:2002-12-01 00:00:00
abstract::Aneuploidy has previously been observed in the Pacific oyster, Crassostrea gigas, and shown to be negatively correlated with growth. Moreover, a significant impact of atrazine exposure has been described in C. gigas, and persistence of that effect has been observed between generations. Evidence of differential chromos...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g04-087
更新日期:2005-02-01 00:00:00
abstract::A cytobiotaxonomic study of the medically important insect vector Simulium ochraceum s.l. revealed two sibling species and one cytotype from various endemic and nonendemic zones of human onchocerciasis in Guatemala and Mexico. Polytene chromosome maps and idiograms as well as notes on the biology of the three taxa des...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g94-006
更新日期:1994-02-01 00:00:00
abstract::Multiple-target fluorescence in situ hybridization (FISH) was applied on mitotic chromosomes of seven Lens taxa using two highly repetitive sequences (pLc30 and pLc7) isolated from the cultivated lentil and the multigene families for the 18S-5.8S-25S (pTa71) and 5S rRNA (pTa794) from wheat simultaneously as probes. Th...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g03-077
更新日期:2003-12-01 00:00:00
abstract::The Himalayan marmot (Marmota himalayana), a natural host and transmitter of plague, is also susceptible to the hepadnavirus infection. To reveal the genetic basis of the hepadnavirus susceptibility and the immune response to plague, we systematically characterized the features of immune genes in Himalayan marmot with...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/gen-2019-0161
更新日期:2020-06-01 00:00:00
abstract::As part of a project on lentil molecular genetics, the sequence of the 18S-25S ribosomal RNA gene intergenic spacer (IGS) of Lens culinaris Medik. was determined. DNA was cloned after polymerase chain reaction (PCR) amplification. The spacer of 2939 bp was composed of nonrepetitive sequences and four tandem arrays of ...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g00-022
更新日期:2000-08-01 00:00:00
abstract::Resistance to common root rot and black point, caused by Cochliobolus sativus, was evaluated in alien chromosome substitution and addition lines of the cultivars 'Cadet' and 'Rescue'. Substitution of chromosome 5B in 'Rescue' with 5Ag from Agropyron elongatum decreased root rot susceptibility to a level intermediate b...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g93-023
更新日期:1993-02-01 00:00:00
abstract::The evolution of Drosophila subobscura mitochondrial DNA has been studied in experimental populations, founded with flies from a natural population from Calvià (Majorca, Balearic Islands, Spain). This population, like others founded in Europe, is characterized by the presence of 2 very common (>95%) mitochondrial hapl...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g05-077
更新日期:2005-12-01 00:00:00
abstract::Despite being a controversial crop, Cannabis sativa L. has a long history of cultivation throughout the world. Following recent legalisation in Canada, it is emerging as an important plant for both medicinal and recreational purposes. Recent progress in genome sequencing of both cannabis and hemp varieties allows for ...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/gen-2020-0087
更新日期:2020-11-13 00:00:00
abstract::During germ line-soma differentiation in early syncytial embryonic development of the chironomid Acricotopus lucidus, a complement of supernumerary chromosomes, the so-called germ line limited chromosomes (Ks), is excluded from the future somatic nuclei in the course of elimination mitoses. The Ks lag behind in the eq...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g05-103
更新日期:2006-03-01 00:00:00
abstract::Understanding the medical, economic, and ecological importance of black flies relies on correct identification of species. However, traditional taxonomy of black flies is impeded by a high degree of morphological uniformity, especially the presence of cryptic biodiversity, historically recognized by details of chromos...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/G10-100
更新日期:2011-01-01 00:00:00
abstract::Marsupial mammals show extraordinary karyotype stability, with 2n = 14 considered ancestral. However, macropodid marsupials (kangaroos and wallabies) exhibit a considerable variety of karyotypes, with a hypothesised ancestral karyotype of 2n = 22. Speciation and karyotypic diversity in rock wallabies (Petrogale) is ex...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g98-159
更新日期:1999-06-01 00:00:00
abstract::We have used nuclear and chloroplast molecular markers to genotype cultivated and wild accessions of Vitis vinifera L. from Tunisia and assess their genetic relationships. Fifty-five distinct genotypes were identified among 80 cultivated accessions, including 18 genotypic groups containing between 2 and 5 accessions p...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g04-072
更新日期:2004-12-01 00:00:00
abstract::Using contiguous genomic DNA sequences of Arabidopsis thaliana, we were able to identify a region of conserved structure in the genome of rice. The conserved, and presumptive homoeologous segments, are 194 kb and 219-300 kb in size in Arabidopsis and rice, respectively. They contain five homologous genes, distinguishe...
journal_title:Genome
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
abstract::Amplified fragment length polymorphism (AFLP) analysis was used in combination with bulked segregant analysis (BSA) to identify molecular markers linked to two cowpea (Vigna unguiculata (L.) Walp.) genes conferring resistance to Striga gesnerioides race 1. After AFLP analysis of an F2 population derived from a cross b...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g02-043
更新日期:2002-10-01 00:00:00
abstract::The wheat homoeologous Group 5 chromosomes were characterized physically in terms of rice linkage blocks using a deletion mapping approach. All three chromosomes, 5A, 5B, and 5D, were shown to have a similar structure, apart from the 4A-5A translocation on the distal end of chromosome arm 5AL. The physical mapping of ...
journal_title:Genome
pub_type: 杂志文章
doi:
更新日期:2000-02-01 00:00:00
abstract::Polyploidization is one of the major driving forces in plant evolution and is extremely relevant to speciation and diversity creation. Polyploidization leads to a myriad of genetic and epigenetic alterations that ultimately generate plants and species with increased genome plasticity. Polyploids are the result of the ...
journal_title:Genome
pub_type: 杂志文章,评审
doi:10.1139/G10-107
更新日期:2011-03-01 00:00:00
abstract::The present work compares the molecular affinities, revealed by GISH, with the analysis of meiotic pairing in intra- and interspecific hybrids between species of Zea obtained in previous works. The joint analysis of these data provided evidence about the evolutionary relationships among the species from the paleopolyp...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/gen-2015-0081
更新日期:2015-10-01 00:00:00
abstract::A survey of restriction fragment polymorphism in mitochondrial DNA (mtDNA) of 17 populations of the mosquito Aedes albopictus was undertaken. The mtDNA size was estimated to be about 17.5 kbp. The level of polymorphism was low, with over 99% of the fragments being shared in common among the 17 populations. Three popul...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g91-046
更新日期:1991-04-01 00:00:00
abstract::A DNA sequence, pOs6.20, was cloned from the nuclear genome of cultivated rice (Oryza sativa L.) by hybridization with a human minisatellite sequence. At high hybridization stringency, a subfragment of the rice sequence, pOs6.20.3, detected low-copy restriction fragment length polymorphisms (RFLPs), which behaved as M...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g93-061
更新日期:1993-06-01 00:00:00
abstract::Red clover is an important forage legume species for temperate regions and very little is known about the genetic organization of its breeding populations. We used random amplified polymorphic DNA (RAPD) genetic markers to address the genetic diversity and the distribution of variation in 20 breeding populations and c...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g03-030
更新日期:2003-08-01 00:00:00
abstract::The theory of pivotal-differential evolution states that one genome of polyploid wheats remains stable (i.e., pivotal) during evolution, while the other genome or genomes may become modified (i.e., differential). A proposed mechanism for apparent modification of the differential genome is that different polyploid spec...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g95-036
更新日期:1995-04-01 00:00:00
abstract::During 30 years of unprecedented urbanization, plant diversity in Shenzhen, a young megacity in southern China, has increased dramatically. Although strongly associated with plant diversity, butterfly diversity generally declines with urbanization, but this has not been investigated in Shenzhen. Considering the speed ...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/gen-2015-0192
更新日期:2016-09-01 00:00:00
abstract::A novel population consisted of a set of 99 near isogenic lines (NILs) and backcross recombinant inbred lines (BCRILs) derived from a cross between the cultivated tomato Lycopersicon esculentum cv. E6206 and L. hirsutum accession LA1777 is presented. Most of the lines contain a single defined introgression from L. hir...
journal_title:Genome
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract::Five nonallelic copies of the dispersed (GATA)n repeated sequence of Drosophila melanogaster (referred to as GATA elements) have been sequenced and analysed. The GATA elements range in size from 111 to 444 bp, consisting predominantly of tandemly repeated GATAs, interspersed with variants of the subunit. The types and...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g90-113
更新日期:1990-10-01 00:00:00
abstract::Trigeneric hybrids offer opportunities to transfer alien traits into cultivated wheat. In this study, a new trigeneric hybrid involving species of Triticum, Psathyrostachys, and Thinopyrum was synthesized by crossing Triticum aestivum L. (wheat)--Thinopyrum intermedium (Host) Barkworth & D.R. Dewey amphiploid Zhong 3 ...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g2012-025
更新日期:2012-05-01 00:00:00
abstract::A number of Triticeae species were tested for tiller production, shoot dry matter production, and root penetration in waterlogged soil, and Thinopyrum elongatum and Elytrigia repens were shown to have better tolerance than wheat using these criteria. Tests of a number of wheat-alien amphiploids showed that there was a...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g93-110
更新日期:1993-10-01 00:00:00
abstract::Larvae of the black fly morphospecies Simulium vittatum from Colorado, Montana, Nebraska, and New Hampshire were cytologically identified as either the IS-7 or the IIIL-1 cytospecies. DNA was PCR amplified from cytotyped larvae using eight 10-mer primers, labeled with 33P, and run on polyacrylamide gels. The entire da...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g03-144
更新日期:2004-04-01 00:00:00
abstract::Variation in recombinant frequencies at two adjacent intervals on chromosome 6 of tomato (Lycopersicon esculentum Mill.) has been studied in seven lines that differ in the amount and origin of introgressed segments from wild species. These lines were all crossed to a genotype homozygous recessive for the markers tl, y...
journal_title:Genome
pub_type: 杂志文章
doi:10.1139/g96-062
更新日期:1996-06-01 00:00:00