摘要:

SummaryA study was made of the progeny of a pair of dizygotic twin bulls whose blood group phenotypes were identical but were genotypically different, indicating a complete replacement of one of the bulls haematopoietic tissus by that of its cotwin. The study was made in an attempt to determine whether the genes of one sibling were transmitted by the other. If it were so it would follow that the germ cells of the testes were chimaeric. Blood typing of 97 progeny provided no evidence to indicate the presence of such a germ cell chimaerism.

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01404.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryEvidence is presented for the occurrence of a second allele in the albumin system of the donkey (Equus asinus). Samples were collected from 127 feral donkeys in four locations within the Panamint Mountains of Death Valley National Monument, California. A common phenotype, electrophoretically characterized by a single band, was recorded from all four locations. A rare, double‐band phenotype was recorded from two location

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01405.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryElectrophoretic variations of enzymatic and non‐enzymatic proteins were investigated in 8 populations of the loachMisgurnus anguillicaudatus. The cathodic hemoglobin and the muscle protein in the region II were shown to be polymorphic, in addition to the five polymorphic proteins previously reported (the anodic hemoglobin, muscle protein in the region III, 6‐phosphogluconate dehydrogenase, phosphoglucomutase and aspartate aminotransferase; Kimura, 1976&1977). The muscle proteins in the regions I, IV and V were monomorphic. The values of genetic distances between loach populations, calculated over 10 loci, indicated thatM. anguillicaudatusshould be classified into two local ra

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01406.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryThe paper describes a cattle serum antigen (LdlA1) located on a low‐density lipoprotein and detected by single radial diffusion.The specificity is inherited in a simple Mendelian manner and the gene controlling its synthesis is inherited independently from the one controlling the synthesis of the α2macroglobulin McA1 antig

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01407.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryHorizontal polyacrylamide gel electrophoresis, on 10% separation gel, of horse serum revealed polymorphism of the vitamin D binding protein (Gc protein) and another post‐albumin protein (Pa). Family data supported the hypothesis that Gc and Pa types were controlled by autosomal codominant alleles. For both Gc and Pa proteins, the homozygous types showed a single fraction while the heterozygous type had two fractions. Pa types were found to be identical to the post‐albumin types reported earlier by starch gel electrophoresis. Two Gc alleles,Gc FandGc S, and three Pa alleles,Pa D, Pa FandPa S, were observed in samples from Swedish (four breeds), Lipizzaner and Arab horses. The frequency of the more common allele at the two loci, i.e.Gc FandPa F, ranged from 0.72–0.93 and from 0.58–0.99, respectively, in the different breeds studied. Plasma samples showed an extra protein fraction near the Gc S fraction and thus were found unsuitable for Gc

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01408.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryCattle and horse plasma samples of known post‐albumin types were radiolabelled with14C‐vitamin D3. These samples were then analysed by polyacrylamide gel electrophoresis, followed by autoradiography. The patterns observed were identical to those of post‐albumin variants. The polymorphic post‐albumin protein of cattle and horse was thus identified as the vitamin D binding protein and homologous to the Gc protein of human

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01409.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryThe aqueous phase of the chloroform/methanol extract of the horse erythrocyte membrane contained the blood group activities Ad, Dc or Dd. The factors Ad and Dc could be separated by gel filtration.

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01410.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01411.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SummaryWhen rabbit serum labelled with vitamin B12[57Co] was subjected to starch gel electrophoresis and au;oradiography, three phenotypes of proteins capable of binding vitamin B12were observed. Family data revealed that these phenotypes (called TC‐A, TC‐AB and TC‐B) are controlied by two codominant alleles (TCAandTCB), at an autosomic locus.Proteins capable of binding vitamin B12both in vivo and in vitro are commonly referred to as Transcobalamins and can be found in the serum of numerous animal species (for a review, see Glass, 1974; Allen, 1975; Stenman, 1975). Furthermore, Daiger et al. (1975a) have described seven different patterns of vitamin B12binding proteins which occur in human plasma and which are presumably controlled by four alleles. The present paper describes experiments in which both starch gel electrophoresis and autoradiography are used to identify three phenotypes of rabbit serum proteins responsible for binding vitamin B12in vitro. It was found that these three phenotypes are controlled by two allelic codominant genes, at an autosomic locus.Individual serum samples (30 μl), obtained from 385 White New Zealand rabbits varying in age from one month to three years, were incubated with 0.1 ng of vitamin B12[57Co] (specific activity: 180 μCi/μg; Lot 247; Radiochemical Centre, Amersham, England) at 37°C for 30 minutes. Starch gel electrophoresis and autoradiography were performed as described by Geldermann (1970) and Daiger et al. (1975b), respectively. Electrofocusing (pH range 3.5–9.5) was conducted in the 2117 Multiphor apparatus (LKB, Bromma, Sweden) according to the manufacturer's instructions. The resulting pH gradient was measured with a surface pH electrode (Ingold, Zürich,

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01412.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0003-3480    

DOI:10.1111/j.1365-2052.1978.tb01413.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY