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Summary In 2 species of terrestrial isopods, namelyPorcellio assamensis andP. laevis, the diploid and haploid numbers of chromosomes have been established to be 48 and 24 respectively for the former species and 50 and 25 respectively for the latter species. Female heterogamety of the ZW type has been found to exist inP. laevis.The authors express their sincere thanks to Prof. G.P. Sharma, and to Prof. S. Khera, Department of Zoology, Panjab University, Chandigarh, for the necessary laboratory facilities. 相似文献
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The concentration of progesterone as determined by radioimmunoassay varied in accordance with the phase of ovarian activity. 相似文献
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Hollingworth P Harold D Sims R Gerrish A Lambert JC Carrasquillo MM Abraham R Hamshere ML Pahwa JS Moskvina V Dowzell K Jones N Stretton A Thomas C Richards A Ivanov D Widdowson C Chapman J Lovestone S Powell J Proitsi P Lupton MK Brayne C Rubinsztein DC Gill M Lawlor B Lynch A Brown KS Passmore PA Craig D McGuinness B Todd S Holmes C Mann D Smith AD Beaumont H Warden D Wilcock G Love S Kehoe PG Hooper NM Vardy ER Hardy J Mead S Fox NC Rossor M Collinge J Maier W Jessen F Rüther E Schürmann B 《Nature genetics》2011,43(5):429-435
We sought to identify new susceptibility loci for Alzheimer's disease through a staged association study (GERAD+) and by testing suggestive loci reported by the Alzheimer's Disease Genetic Consortium (ADGC) in a companion paper. We undertook a combined analysis of four genome-wide association datasets (stage 1) and identified ten newly associated variants with P ≤ 1 × 10(-5). We tested these variants for association in an independent sample (stage 2). Three SNPs at two loci replicated and showed evidence for association in a further sample (stage 3). Meta-analyses of all data provided compelling evidence that ABCA7 (rs3764650, meta P = 4.5 × 10(-17); including ADGC data, meta P = 5.0 × 10(-21)) and the MS4A gene cluster (rs610932, meta P = 1.8 × 10(-14); including ADGC data, meta P = 1.2 × 10(-16)) are new Alzheimer's disease susceptibility loci. We also found independent evidence for association for three loci reported by the ADGC, which, when combined, showed genome-wide significance: CD2AP (GERAD+, P = 8.0 × 10(-4); including ADGC data, meta P = 8.6 × 10(-9)), CD33 (GERAD+, P = 2.2 × 10(-4); including ADGC data, meta P = 1.6 × 10(-9)) and EPHA1 (GERAD+, P = 3.4 × 10(-4); including ADGC data, meta P = 6.0 × 10(-10)). 相似文献
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G. S. Pahwa Duran Kumar R. C. Arora S. K. Batra R. S. Pandey 《Cellular and molecular life sciences : CMLS》1979,35(12):1613-1614
Summary The concentration of progesterone as determined by radioimmunoassay varied in accordance with the phase of ovarian activity.The authers are indebted to Dr. D. Sundaresan, for the encouragement during the course of study. Progesterone antiserum from Dr. B.J.A. Furr is gratefully acknowledged. 相似文献
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