Reciprocal or nonreciprocal human chromosome translocations?

1977 ◽  
Vol 38 (1) ◽  
pp. 1-5 ◽  
Author(s):  
I. Hansmann ◽  
C. Wiedeking ◽  
T. Grimm ◽  
J. Gebauer
Keyword(s):  
Human Chromosome ◽  
Chromosome Translocations

scholarly journals International study of factors affecting human chromosome translocations

2008 ◽  
Vol 652 (2) ◽  
pp. 112-121 ◽  
Author(s):  
Alice J. Sigurdson ◽  
Mina Ha ◽  
Michael Hauptmann ◽  
Parveen Bhatti ◽  
Radim J. Sram ◽  
...  
Keyword(s):  
Human Chromosome ◽  
International Study ◽  
Factors Affecting ◽  
Chromosome Translocations

Chromosome painting of the red-handed tamarin (Saguinus midas) compared to other Callitrichinae monkeys

Genome ◽  
2018 ◽  
Vol 61 (10) ◽  
pp. 771-776
Author(s):  
Roscoe Stanyon ◽  
Dorotea Giusti ◽  
Naiara Pereira Araújo ◽  
Francesca Bigoni ◽  
Marta Svartman
Keyword(s):  
Human Chromosome ◽  
Chromosome Painting ◽  
Chromosome Banding ◽  
Neotropical Primates ◽  
Leontopithecus Rosalia ◽  
Chromosome Translocations ◽  
Chromosome Associations ◽  
First Time ◽  
Callithrix Geoffroyi

Here we present, for the first time, the complete chromosome painting map of Saguinus midas, the red-handed tamarin. Chromosome banding and painting with human chromosome-specific probes were used to compare the karyotype of this species with those of four other Neotropical primates of the subfamily Callitrichinae: Leontopithecus rosalia, Callithrix geoffroyi, C. penicillata, and Mico argentatus. The chromosome painting map of S. midas was identical to that of L. rosalia and other previously studied tamarin species (genera Saguinus and Leontopithecus). The three marmoset species studied (genera Callithrix and Mico) differed in the painting pattern of four human probes (chromosomes 1, 2, 10, and 16). These paints identified the presence or absence of chromosome associations HSA 1/10 and 2/16 in these taxa. By integrating our data with those from the literature, we were able to propose an ancestral Callitrichinae karyotype. The genera Saguinus and Leontopithecus (tamarins) conserve the ancestral Callitrichinae karyotype, while Mico and Callithrix (marmosets) show more derived karyotypes due to chromosome translocations and fissions that occurred during the evolution of these taxa.

On an Application of the Metallurgical Stage to Chromosome Morphology

1967 ◽  
Vol 25 ◽  
pp. 28-29
Author(s):  
Godfrey C. Hoskins
Keyword(s):  
Human Chromosome ◽  
Electron Micrographs ◽  
Chromosome Morphology ◽  
Electron Optics ◽  
Electron Micrograph ◽  
Photographic Evidence ◽  
Sophisticated Equipment ◽  
Periodic Arrangement

The first serious electron microscooic studies of chromosomes accompanied by pictures were by I. Elvers in 1941 and 1943. His prodigious study, from the manufacture of micronets to the development of procedures for interpreting electron micrographs has gone all but unnoticed. The application of todays sophisticated equipment confirms many of the findings he gleaned from interpretation of images distorted by the electron optics of that time. In his figure 18 he notes periodic arrangement of pepsin sensitive “prickles” now called secondary fibers. In his figure 66 precise regularity of arrangement of these fibers can be seen. In his figure 22 he reproduces Siegbahn's first stereoscopic electron micrograph of chromosomes.The two stereoscopic pairs of electron micrographs of a human chromosome presented here were taken with a metallurgical stage on a Phillips EM200. These views are interpreted as providing photographic evidence that primary fibers (1°F) about 1,200Å thick are surrounded by secondary fibers (2°F) arranged in regular intervals of about 2,800Å in this metanhase human chromosome. At the telomere the primary fibers bend back on themselves and entwine through the center of each of each chromatid. The secondary fibers are seen to continue to surround primary fibers at telomeres. Thus at telomeres, secondary fibers present a surface not unlike that of the side of the chromosome, and no more susceptible to the addition of broken elements from other chromosomes.

Localization of MODY3 to a 5-cM region of human chromosome 12

Diabetes ◽  
1995 ◽  
Vol 44 (12) ◽  
pp. 1408-1413 ◽  
Author(s):  
S. Menzel ◽  
K. Yamagata ◽  
J. B. Trabb ◽  
J. Nerup ◽  
M. A. Permutt ◽  
...  
Keyword(s):  
Human Chromosome ◽  
Chromosome 12

New susceptibility locus for NIDDM is localized to human chromosome 20q

Diabetes ◽  
1997 ◽  
Vol 46 (5) ◽  
pp. 876-881 ◽  
Author(s):  
L. Ji ◽  
M. Malecki ◽  
J. H. Warram ◽  
Y. Yang ◽  
S. S. Rich ◽  
...  
Keyword(s):  
Human Chromosome ◽  
Susceptibility Locus
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