Pedigree analysis of lumbar developmental spinal stenosis: Determination of potential inheritance patterns

Author(s):  
Marcus K. L. Lai ◽  
Prudence W. H. Cheung ◽  
You‐Qiang Song ◽  
Dino Samartzis ◽  
Jason P. Y. Cheung
2013 ◽  
Vol 75 (9) ◽  
pp. 710-712
Author(s):  
S. Randolph May

An algorithm has been developed for the rapid determination of single-gene inheritance patterns from genetic pedigrees.


Cephalalgia ◽  
1993 ◽  
Vol 13 (6) ◽  
pp. 389-394 ◽  
Author(s):  
M Mochi ◽  
S Sangiorgi ◽  
P Cortelli ◽  
V Carelli ◽  
C Scapoli ◽  
...  

We collected two clinically matched samples of patients, one sample affected by migraine with aura the other by migraine without aura, to investigate the genetic determination of these conditions. A maternal and X-linked transmission for both these diseases was considered unlikely after pedigree analysis. Classical segregation analysis indicated a likely autosomal recessive kind of transmission for both. Reduced penetrance and the h2 values, however, imply the presence of additional genetic and/or environmental factors controlling the phenotypic expression of migraine.


2021 ◽  
Vol 9 (4) ◽  
pp. 174
Author(s):  
Rike Oktarianti ◽  
Iguh Widigda Putra ◽  
Resmining Mega Arofa ◽  
Asmoro Lelono

The taste of sensitivity of phenylthiocarbamide (PTC), is autosomal dominant trait inherited while the colour blindness is a sex linked genetic trait on the X chromosome. The purpose of this study was to determine the distribution of taster and non taster phenotypes, prevalence of color blindness, frequency of taster and non taster alleles, and frequency of color blind alleles, as well as pedigree analysis in non taster and color blind families. The research was conducted on the Tengger tribe, in Ranupani village, Senduro, Lumajang. Determination of the sample is carryout randomly. Detection of the ability to taste PTC was respondents to taste the PTC solution from the lowest concentration of 0.32mg/L (P13) to the highest concentration of 1300 mg/L (P1). Color blindness detection by the Ishihara method. The results of the study showed that the distribution of the taster was 98.1% while the non-taster was 1.9%. The allele frequency of the dominant taster (T) was 0.86 and the recessive allele non taster (t) is 0.14. The prevalence of color blindness in the population of the Tengger tribe was 0.63% and the allele frequency for color blindness was 0.013. The pedigree analysis of non taster family showed that non taster individuals were born from taster couple (Tt) or from couple of non taster (tt) with tasters (Tt) heterozigot. While the pattern of inheritance of color blindness was criss-cross inheritance pattern, which is passed from mother to son.


2010 ◽  
Vol 138 (5) ◽  
pp. S-458 ◽  
Author(s):  
Thangam Venkatesan ◽  
Stephanie Wagler ◽  
Nilay Kumar ◽  
Jyotirmoy Sengupta ◽  
Abhilasha Pandey ◽  
...  

2013 ◽  
Vol 50 (1) ◽  
pp. 39-52
Author(s):  
Agnieszka Tomkowiak ◽  
Zbigniew Broda ◽  
Krzysztof Moliński ◽  
Marta Molińska-Glura ◽  
Józef Adamczyk

SUMMARY Within the last twenty years studies have been conducted at many research centers with the aim of dividing breeding materials into heterotic groups based on molecular markers. Molecular techniques make it possible to study the genetic purity of inbred lines, determine their genetic variability and classify breeding materials for which no information is available on their origin. This study aims to investigate relationships between coefficients of relatedness (pedigree analysis) and molecular similarity estimated on the basis of AFLP and RAPD molecular markers, between parental forms of F1 maize hybrids. Determination of these relationships will make it possible to establish a hierarchy of importance for applied methods concerning selection of parental components for heterotic crossings based on the degree of relatedness and genetic similarity. As a result of the experiment it was shown that in the case of incomplete pedigree information, in the selection of parental components for crossings we may use information concerning molecular similarity determined using AFLP markers and the Jaccard index, which to the least degree differentiates matrices of AFLP and RAPD molecular similarity.


2003 ◽  
Vol 39 (4) ◽  
pp. 385-389 ◽  
Author(s):  
Karen M. Tobias

A hereditary basis for congenital portosystemic shunts (PSS) in Yorkshire terriers was explored through record and pedigree analysis and a breeding trial. The odds ratio for PSS in Yorkshire terriers was 35.9 times greater than for all other breeds combined. Wright’s coefficient of inbreeding was approximately twice as high for Yorkshire terriers with PSS as compared to normal members of the breed (P=0.09). No common ancestors were found that were significant to the PSS group. Two affected Yorkshire terriers were bred and produced two normal puppies. Congenital PSS appears to be hereditary in Yorkshire terriers; however, the mechanism of inheritance has yet to be elucidated.


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