Abstract：
:Meiotic recombination is essential for the segregation of chromosomes and the formation of normal haploid gametes, yet we know very little about the meiotic process in humans. We present the first (to our knowledge) recombination maps for every autosome in the human male obtained by new immunofluorescence techniques followed by centromere-specific multicolor fluorescence in situ hybridization in human spermatocytes. The mean frequency of autosomal recombination foci was 49.8+/-4.3, corresponding to a genetic length of 2,490 cM. All autosomal bivalents had at least one recombination focus. In contrast, the XY bivalent had a recombination focus in 73% of nuclei, suggesting that a relatively large proportion of spermatocytes may be at risk for nondisjunction of the XY bivalent or elimination by meiotic arrest. There was a very strong correlation between mean length of the synaptonemal complex (SC) and the number of recombination foci per SC. Each bivalent presented a distinct distribution of recombination foci, but in general, foci were near the distal parts of the chromosome, with repression of foci near the centromere. The position of recombination foci demonstrated positive interference, but, in rare instances, foci were very close to one another.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Sun F,Oliver-Bonet M,Liehr T,Starke H,Ko E,Rademaker A,Navarro J,Benet J,Martin RHdoi
10.1086/382138subject
Has Abstractpub_date
2004-03-01 00:00:00pages
521-31issue
3eissn
0002-9297issn
1537-6605pii
S0002-9297(07)61869-2journal_volume
74pub_type
杂志文章abstract：:We conducted a genomewide linkage screen of a simple heavy-smoking quantitative trait, the maximum number of cigarettes smoked in a 24-h period, using two independent samples: 289 Australian and 155 Finnish nuclear multiplex families, all of which were of European ancestry and were targeted for DNA analysis by use of ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/513703
更新日期：2007-05-01 00:00:00
abstract：:The spinocerebellar ataxia 3 locus (SCA3) for type I autosomal dominant cerebellar ataxia (ADCA type I), a clinically and genetically heterogeneous group of neurodegenerative disorders, has been mapped to chromosome 14q32.1. ADCA type I patients from families segregating SCA3 share clinical features in common with tho...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：:A family-history cancer survey was conducted on 5,486 men who underwent a radical prostatectomy, for clinically localized prostate cancer, in the Department of Urology at the Mayo Clinic during 1966-95; 4,288 men responded to the survey. Complex segregation analysis was performed to assess the genetic basis of age at ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/301862
更新日期：1998-06-01 00:00:00
abstract：:At least two spontaneous abortions were karyotyped in 273 women during cytogenetic surveys in New York City and Honolulu. These pairs were analyzed using maximum-likelihood logistic-regression analysis to adjust for maternal age and location. There was a significantly increased risk for a chromosomally normal spontane...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:Inhibition of replicative DNA synthesis following gamma-irradiation is observed in eukaryotic cells but is defective in cells derived from patients with the cancer-prone inherited disorder ataxia-telangiectasia (A-T) and in A-T-like Chinese hamster cell mutants. Chinese hamster cells show a less pronounced inhibition ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：:Phosphatase and tensin homolog (PTEN) is a tumor suppressor frequently mutated in diverse cancers. Germline PTEN mutations are also associated with a range of clinical outcomes, including PTEN hamartoma tumor syndrome (PHTS) and autism spectrum disorder (ASD). To empower new insights into PTEN function and clinically ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2018.03.018
更新日期：2018-05-03 00:00:00
abstract：:The identification of pathways that underlie common disease has been greatly impacted by the study of rare families that segregate single genes with large effect. Intracranial aneurysm is a common neurological problem; the rupture of these aneurysms constitutes a frequently catastrophic neurologic event. The pathogene...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/426953
更新日期：2005-01-01 00:00:00
abstract：:Linkage analyses were performed in 11 families with X-linked Menkes disease. In each family more than one affected patient had been diagnosed. Forty informative meioses were tested using 11 polymorphic DNA markers. From two-point linkage analyses high lod scores are seen for DXS146 (pTAK-8; maximal lod score 3.16 at r...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：:Familial exudative vitreoretinopathy (FEVR) is an inherited blinding disorder characterized by the abnormal development of the retinal vasculature. The majority of mutations identified in FEVR are found within four genes that encode the receptor complex (FZD4, LRP5, and TSPAN12) and ligand (NDP) of a molecular pathway...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2017.05.001
更新日期：2017-06-01 00:00:00
abstract：:Lissencephaly is a malformation of cortical development typically caused by deficient neuronal migration resulting in cortical thickening and reduced gyration. Here we describe a "thin" lissencephaly (TLIS) variant characterized by megalencephaly, frontal predominant pachygyria, intellectual disability, and seizures. ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2016.09.010
更新日期：2016-11-03 00:00:00
abstract：:Génin and Clerget-Darpoux recently discussed the derivation of the probabilities of identity states for populations in which there was some degree of kinship, primarily to allow the extension of the classical affected-sib-pair method to such populations. It is argued here that their derivation makes certain assumption...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/301743
更新日期：1998-03-01 00:00:00
abstract：:In the present study, we report a kindred with hearing loss, congenital heart defects, and posterior embryotoxon, segregating as autosomal dominant traits. Six of seven available affected patients manifested mild-to-severe combined hearing loss, predominantly affecting middle frequencies. Two patients were diagnosed w...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/341327
更新日期：2002-07-01 00:00:00
abstract：:Allan-Herndon-Dudley syndrome was among the first of the X-linked mental retardation syndromes to be described (in 1944) and among the first to be regionally mapped on the X chromosome (in 1990). Six large families with the syndrome have been identified, and linkage studies have placed the gene locus in Xq13.2. Mutati...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/431313
更新日期：2005-07-01 00:00:00
abstract：:Supernumerary marker chromosomes (SMCs) are common, but their molecular content and mechanism of origin are often not precisely characterized. We analyzed all centromere regions to identify the junction between the unique chromosome arm and the pericentromeric repeats. A molecular-ruler clone panel for each chromosome...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2007.10.013
更新日期：2008-02-01 00:00:00
abstract：:Increasing public interest in direct-to-consumer (DTC) genetic ancestry testing has been accompanied by growing concern about issues ranging from the personal and societal implications of the testing to the scientific validity of ancestry inference. The very concept of "ancestry" is subject to misunderstanding in both...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2010.03.011
更新日期：2010-05-14 00:00:00
abstract：:A single base mutation at nucleotide position 3460 (nt 3460) in the ND1 gene in human mtDNA was found to be associated with Leber hereditary optic neuroretinopathy (LHON). The G-to-A mutation converts an alanine to a threonine at the 52d codon of the gene. The mutation also abolishes an AhaII restriction site and thus...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:Linkage analysis of 72 pedigrees by the maximum-likelihood method provides evidence of linkage between HLA and the hypothesized multiple sclerosis susceptibility gene (MSSG) for both the dominant and recessive models of inheritance and for penetrance values ranging from 5%--65% (or higher). This MSSG, if it exists, is...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:Perrault syndrome is a genetically and clinically heterogeneous autosomal-recessive condition characterized by sensorineural hearing loss and ovarian failure. By a combination of linkage analysis, homozygosity mapping, and exome sequencing in three families, we identified mutations in CLPP as the likely cause of this ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2013.02.013
更新日期：2013-04-04 00:00:00
abstract：:The sibship disequilibrium test (SDT) is designed to detect both linkage in the presence of association and association in the presence of linkage (linkage disequilibrium). The test does not require parental data but requires discordant sibships with at least one affected and one unaffected sibling. The SDT has many d...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/302137
更新日期：1998-12-01 00:00:00
abstract：:Six closely linked PRP (proline-rich protein) genes code for many salivary PRPs that show frequent length and null variants. From determined protein sequences and DNA sequence analysis of variant alleles, we here report the coding and molecular basis for Con (concanavalin A-binding) and Po (parotid "o") protein polymo...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Allelic data for the D1S80 locus was obtained by using the PCR and subsequent analysis with a high-resolution, horizontal PAGE technique and silver staining. Compared with RFLP analysis of VNTR loci by Southern blotting, the approach described in this paper offers certain advantages: (1) discrete allele resolution, (2...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Aberrant gene expression underlies many human diseases. RNA polymerase II (Pol II) pausing is a key regulatory step in transcription. Here, we mapped the locations of RNA Pol II in normal human cells and found that RNA Pol II pauses in a consistent manner across individuals and cell types. At more than 1,000 genes inc...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2019.08.003
更新日期：2019-10-03 00:00:00
abstract：:Retinitis pigmentosa (RP) is a group of disorders characterized by progressive degeneration of the outer retina, resulting in night blindness, visual field loss, an abnormal electroretinogram, and characteristic retinal pigmentary changes. An important step in the understanding of RP has been the recognition that some...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:One widely used measure of genetic similarity for pairs of relatives is gene identity-by-descent (IBD) sharing. Genes that are copies of a single gene in a common ancestor of the individuals who now carry them are said to be IBD. One obvious extension of the IBD concept is IBD gene(s) shared by more than two individua...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1995-06-01 00:00:00
abstract：:An autosomal recessive deficiency of acid alpha-glucosidase (GAA), type II glycogenosis, is genetically and clinically heterogeneous. The discovery of an enzyme-inactivating genomic deletion of exon 18 in three unrelated genetic compound patients--two infants and an adult--provided a rare opportunity to analyze the ef...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:Assignment of alleles to haplotypes for nearly all the variants on all chromosomes can be performed by genetic analysis of a nuclear family with three or more children. Whole-genome sequence data enable deterministic phasing of nearly all sequenced alleles by permitting assignment of recombinations to precise chromoso...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2011.07.023
更新日期：2011-09-09 00:00:00
abstract：:The genetics of African North Americans are complex amalgamations of various West and Central African peoples with modest gene flow from specific European and Amerindian peoples. A comprehensive understanding of African North American biohistory is a prerequisite for accurate interpretations of the ancestral genetics ...
journal_title：American journal of human genetics
pub_type： 评论,杂志文章
doi：10.1016/j.ajhg.2020.10.010
更新日期：2021-01-07 00:00:00
abstract：:We measured the proportion of mutant mtDNA (mutation load) in 82 primary oocytes from a woman who harbored the A3243G mtDNA mutation. The frequency distribution of mutation load indicates that random drift is the principal mechanism that determines the level of mutant mtDNA within individual oocytes. ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/318190
更新日期：2001-02-01 00:00:00
abstract：:Nemaline myopathy (NM) is a clinically and genetically heterogeneous disorder characterized by muscle weakness and the presence of nemaline bodies (rods) in skeletal muscle. Disease-causing mutations have been reported in five genes, each encoding a protein component of the sarcomeric thin filament. Recently, we ident...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/320605
更新日期：2001-06-01 00:00:00
abstract：:Cone-rod dystrophy (CRD) and retinitis pigmentosa (RP) are clinically and genetically overlapping heterogeneous retinal dystrophies. By using homozygosity mapping in an individual with autosomal-recessive (ar) RP from a consanguineous family, we identified three sizeable homozygous regions, together encompassing 46 Mb...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2011.11.015
更新日期：2012-01-13 00:00:00
