FISH-mapping comparison between river buffalo chromosome 7 and sheep chromosome 6: assignment of new loci and comparison with HSA4

2009 ◽  
Vol 124 (1) ◽  
pp. 106-111 ◽  
Author(s):  
A. Perucatti ◽  
G.P. Di Meo ◽  
T. Goldammer ◽  
D. Incarnato ◽  
I. Nicolae ◽  
...  
2000 ◽  
Vol 2000 ◽  
pp. 41-41
Author(s):  
G.A. Walling ◽  
K.G. Dodds ◽  
S.M. Galloway ◽  
A.E. Beattie ◽  
E.A. Lord ◽  
...  

The Booroola Merino strain of sheep carries a major autosomal mutation (FecB) which increases ovulation rate (Davis et al., 1982). To map the gene, heterozygous sires (B+) were mated to non-carrier ewes (++). The female progeny were then examined by laproscopy to determine ovulation rates and these phenotypes used to assign progeny genotypes (B+, ++ or undetermined). Linkage analysis between the assigned Booroola genotype and a set of marker genotypes was used to assign the Booroola gene to a region of sheep chromosome 6 (OOV6) (Montgomery et al., 1994). These studies relied on accurate genotype assignment and a constant gene effect across animals and breeding seasons. This study aims to use regression analysis to verify the validity of these assumptions.


1997 ◽  
Vol 5 (5) ◽  
pp. 337-340 ◽  
Author(s):  
L. Iannuzzi ◽  
L. Ferretti ◽  
G. P. Di Meo ◽  
A. Perucatti

1995 ◽  
Vol 6 (10) ◽  
pp. 760-761 ◽  
Author(s):  
A. Oulmouden ◽  
D. Vaiman ◽  
A. Oustry ◽  
E. P. Cribiu ◽  
R. Julien

2000 ◽  
Vol 2000 ◽  
pp. 43-43 ◽  
Author(s):  
G.A. Walling ◽  
K.G. Dodds ◽  
S.M. Galloway ◽  
A.E. Beattie ◽  
E.A. Lord ◽  
...  

The increase in ovulation rate caused by the Booroola gene was first observed in the Booroola Merino strain of sheep (Davis et al., 1982) and the gene was subsequently mapped to sheep chromosome 6 (OOV6) (Montgomery et al. 1994). The low heritability of fertility traits and the desire to produce more lambs per ewe from meat breeds has lead to many crossbreeding programs seeking to obtain the benefits of the Booroola gene. However, many producers report animals carrying a Booroola allele to be lighter than non-carriers (G. Davis, personal communication). The Booroola Merino strain of sheep is typically lighter than recipient breeds used in the introgression programmes e.g. Romney. This study aims to determine whether the Booroola gene has a pleiotropic effect on liveweight or whether there is any evidence to suggest a closely linked quantitative trait locus (QTL) affecting liveweight that may ‘hitchhike’ with the Booroola gene.


1996 ◽  
Vol 7 (5) ◽  
pp. 373-376 ◽  
Author(s):  
E. A. Lord ◽  
J. M. Lumsden ◽  
K. G. Dodds ◽  
H. M. Henry ◽  
A. M. Crawford ◽  
...  

2013 ◽  
Vol 92 (3) ◽  
pp. 595-597 ◽  
Author(s):  
A. FARHADI ◽  
V. GENUALDO ◽  
A. PERUCATTI ◽  
S. H. HAFEZIAN ◽  
G. RAHIMI-MIANJI ◽  
...  
Keyword(s):  

2007 ◽  
Vol 119 (3-4) ◽  
pp. 235-241 ◽  
Author(s):  
T. Goldammer ◽  
R. Weikard ◽  
M.N. Miziara ◽  
R.M. Brunner ◽  
R. Agarwala ◽  
...  

2007 ◽  
Vol 38 (4) ◽  
pp. 406-409 ◽  
Author(s):  
N. B. Stafuzza ◽  
P. Ianella ◽  
M. N. Miziara ◽  
R. Agarwala ◽  
A. A. Schäffer ◽  
...  

Blood ◽  
1987 ◽  
Vol 70 (2) ◽  
pp. 444-447 ◽  
Author(s):  
ME Richardson ◽  
QG Chen ◽  
DA Filippa ◽  
K Offit ◽  
A Hampton ◽  
...  

Abstract We describe additional nonrandom chromosome abnormalities in 18 cases of intermediate- to high-grade non-Hodgkin's lymphoma (NHL) bearing t(14;18) that were ascertained in a prospective cytogenetic study of all lymphomas seen at Memorial Hospital during the period January 1, 1984, to December 31, 1986. These included seven cases that had histological evidence of transformation from a lower grade and 11 that lacked such evidence. The most common of the additional changes seen in both groups affected chromosomes 6 and 7 and comprised the loss of chromosome 6 or del(6q) and the presence of more than two copies of chromosome 7 or duplication of 7q. Changes affecting these two chromosomes were less frequent in low-grade lymphomas with t(14;18) as well as in lymphomas lacking the translocation. These data suggest that common cytogenetic mechanisms underlie expression of high-grade histologies by lymphomas carrying t(14;18). In addition, they may serve as indicators of transformation when encountered in low-grade lymphomas with t(14;18).


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