scholarly journals Chromosomal location of peptidase, PEPT-1, genes in Triticum aestivum var. Chinese Spring

1986 ◽  
Vol 48 (1) ◽  
pp. 19-20 ◽  
Author(s):  
Edward M. Golenberg
Keyword(s):  
Triticum Aestivum ◽  
Chinese Spring ◽  
Chromosomal Location ◽  
Structural Genes ◽  
Genes Encoding

SummaryDitelocentric accessions of the Chinese Spring cultivar of Triticum aestivum were analysed electrophoretically for peptidase (PEPT) and amino peptidase (AMP = LAP) activity. Isozymic activity was missing in the accessions CSDT6AS and CSDT6BS when stained for PEPT. This was taken as evidence that the structural genes encoding these isozymes are located on the long arms of chromosomes 6A and 6B. These genes have been named Pept-A1 and Pept-B1, respectively. Isozymic activity was missing in the CSDT6BL accession when stained for AMP. This result reconfirms the previously published location of the gene Amp-B1 on the short arm of chromosome 6B and demonstrates that the two sets of loci are clearly different.

scholarly journals CHROMOSOMAL LOCATION OF GENES CONTROLLING FLAVONOID PRODUCTION IN HEXAPLOID WHEAT

Genetics ◽  
1983 ◽  
Vol 103 (2) ◽  
pp. 313-321
Author(s):  
Paula R Neuman ◽  
J G Waines ◽  
K W Hilu ◽  
D Barnhart
Keyword(s):  
Triticum Aestivum ◽  
Hexaploid Wheat ◽  
Chinese Spring ◽  
Chromosomal Location ◽  
Triticum Aestivum L ◽  
Phenolic Glycoside ◽  
Two Dimensional ◽  
Chromosome Arm ◽  
The Individual ◽  
Homoeologous Chromosomes

ABSTRACT Two-dimensional paper chromatography was performed on methanol extracts of leaves of hexaploid bread wheat, Triticum aestivum L. em. Thell. cultivar Chinese Spring, and of the available nullisomic-tetrasomic compensating lines, the tetrasomic lines and the ditelocentric lines. The chromatograms had 27 spots identified as flavonoids and six representing phenolic acids. Some of the areas were complex and contained more than one compound. Four flavonoids were identified as under the control of gene(s) on chromosome arms 1DS, 4DL, 5AS and 6BS. A phenolic glycoside was concluded to be controlled by a gene(s) on chromosome arm 7BL. Gene(s) on chromosome arm 4DL affected the amount of compounds in two other spots, and gene(s) on chromosome arm 4BS reduced the level of all flavonoid compounds. The individual compounds in some of the complex spots may be under the control of gene(s) on homoeologous chromosomes.

scholarly journals Chromosomal location of structural genes encoding murine immunoglobulin lambda light chains. Genetics of murine lambda light chains.

1981 ◽  
Vol 153 (4) ◽  
pp. 793-800 ◽  
Author(s):  
P D'Eustachio ◽  
A L Bothwell ◽  
T K Takaro ◽  
D Baltimore ◽  
F H Ruddle
Keyword(s):  
Chromosomal Localization ◽  
Chromosomal Location ◽  
Light Chains ◽  
Chain Gene ◽  
Chromosome 6 ◽  
Structural Genes ◽  
Gene Sequences ◽  
Genes Encoding ◽  
Full Complement ◽  
Lambda Dna

To determine the chromosomal localization of murine lambda light (L) chain structural genes, DNA from a panel of 11 mouse x hamster somatic cell hybrids was scored for the presence of sequences homologous to cloned lambda DNA probe molecules. Six of the hybrids had detectable lambda I and lambda II gene sequences. In all six, the full complement of murine sequences was present, and in its germline configuration. The remaining hybrids lacked any detectable murine lambda L chain gene sequences. The only mouse chromosome present in all of the positive hybrids and absent from the negative ones was number 16, allowing the assignment of lambda L chain structural genes to this chromosome. Together with the previous assignments of the kappa L chain genes to chromosome 6 and heavy chain genes to chromosome 12, this finding completes the mapping of Ig structural genes in the mouse at the chromosomal level.

Structure, expression, chromosomal location and product of the gene encoding Adh2 in Petunia.

Genetics ◽  
1993 ◽  
Vol 133 (4) ◽  
pp. 999-1007
Author(s):  
R G Gregerson ◽  
L Cameron ◽  
M McLean ◽  
P Dennis ◽  
J Strommer
Keyword(s):  
Chromosomal Location ◽  
Higher Plants ◽  
Gene Encoding ◽  
Genomic Libraries ◽  
Regulatory Strategy ◽  
Adh1 Gene ◽  
Adh Genes ◽  
Genes Encoding ◽  
Adh Gene ◽  
Polymerase Chain

Abstract In most higher plants the genes encoding alcohol dehydrogenase comprise a small gene family, usually with two members. The Adh1 gene of Petunia has been cloned and analyzed, but a second identifiable gene was not recovered from any of three genomic libraries. We have therefore employed the polymerase chain reaction to obtain the major portion of a second Adh gene. From sequence, mapping and northern data we conclude this gene encodes ADH2, the major anaerobically inducible Adh gene of Petunia. The availability of both Adh1 and Adh2 from Petunia has permitted us to compare their structures and patterns of expression to those of the well-studied Adh genes of maize, of which one is highly expressed developmentally, while both are induced in response to hypoxia. Despite their evolutionary distance, evidenced by deduced amino acid sequence as well as taxonomic classification, the pairs of genes are regulated in strikingly similar ways in maize and Petunia. Our findings suggest a significant biological basis for the regulatory strategy employed by these distant species for differential expression of multiple Adh genes.

Chromosomal Location of Dimeric Phosphatase Structural Genes in Hexaploid Wheat

1988 ◽  
Vol 100 (3) ◽  
pp. 188-192 ◽  
Author(s):  
M. M. Sanchez ◽  
M. A. Elorrieta ◽  
C. Bemto
Keyword(s):  
Hexaploid Wheat ◽  
Chromosomal Location ◽  
Structural Genes

Chilling injury and chlorotic reactions of euploids and aneuploids of the group 6 homoeologues of common wheat

Genome ◽  
1992 ◽  
Vol 35 (3) ◽  
pp. 468-473 ◽  
Author(s):  
Ernest D. P. Whelan ◽  
G. B. Schaalje
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Chinese Spring ◽  
Prolonged Exposure ◽  
Chilling Injury ◽  
Triticum Aestivum L ◽  
Recessive Trait ◽  
Cytoplasmic Effects ◽  
Group 6 ◽  
Winter Wheat Cultivars

Aneuploid seedlings of the common wheat (Triticum aestivum L.) cv. Chinese Spring (CS) that are nullisomic or telosomic for the long arm of chromosome 6D are susceptible to chilling injury under prolonged exposure to 6 °C; normal euploids or telosomics for the short arm are not. Studies of seedling grown for various durations at 20 °C prior to growth at 6 °C showed that chilling injury was a juvenile phenomenon and that the extent of injury was inversely proportional to the duration of growth at 20 °C to a maximum of about 14 days. When reciprocal crosses were made between susceptible 6D nullisomics or long-arm ditelocentrics of CS and resistant 6D nullisomics of three spring and one winter wheat cultivars, progenies from aneuploid F1 hybrids all segregated for susceptibility as a recessive trait and at a frequency approximating a dihybrid ratio; no cytoplasmic effects were detected. Aneuploids of the group 6 homoeologues of the spring wheat cvs. Cadet and Rescue were resistant, as were group 6 whole-chromosome substitutions of eight different donor wheats in the recipient parent CS and 56 other euploids tested. Genes for resistance to chilling injury appear to involve the group 6 chromosomes and the short arm of 6D in Chinese Spring. In contrast with chilling injury, all aneuploid lines with only four doses of the "corroded" loci on group 6 chromosomes exhibited chlorotic symptoms.Key words: Triticum aestivum, chilling injury.

Chromosomal location of the catalase structural genes in Zea mays using B-A translocations

1980 ◽  
Vol 58 (5) ◽  
pp. 211-218 ◽  
Author(s):  
D. G. Roupakias ◽  
D. E. McMillin ◽  
J. G. Scandalios
Keyword(s):  
Zea Mays ◽  
Chromosomal Location ◽  
Structural Genes
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