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Haplotype and mutation analysis for newly suggested Y-STRs in Korean father-son pairs
Oh, Y.N.,Lee, H.Y.,Lee, E.Y.,Kim, E.H.,Yang, W.I.,Shin, K.J. Elsevier Science 2015 FORENSIC SCIENCE INTERNATIONAL GENETICS Vol.15 No.-
In this study, 363 Korean father-son haplotype transfers in 351 families were analyzed using an in-house multiplex PCR system for 14 Y-STRs (DYS385a/b, DYF387S1, DYS391, DYS449, DYS460, DYS481, DYS518, DYS533, DYS549, DYS570, DYS576, DYS627 and DYS643), that included 11 loci newly added to the PowerPlex Y23 system or the Yfiler Plus system. The Y-STRs showed gene diversity values ranging from 0.2499 to 0.9612; the multicopy Y-STR loci DYS385 and DYF387S1 had high gene diversity of 0.9612 and 0.9457, respectively. In addition, DYF387S1, which has two copies, showed three alleles in seven individuals, and micro-variant alleles were observed in 14 individuals at four loci (DYS448, DYS518, DYS570 and DYS627). Among 351 haplotypes for the 11 newly added Y-STRs, 350 different haplotypes were observed, with an overall haplotype diversity of 0.9999 and discrimination capacity of 99.72%. In 363 haplotype transfers from 351 pedigrees, 29 single-step mutations were observed at 11 Y-STRs. Locus-specific mutation rate estimates varied from 0.0 to 1.93x10<SUP>-2</SUP>, with an average estimated mutation rate of 6.66x10<SUP>-3</SUP>. Two father-son pairs had mutations at two different loci in 11 Y-STRs. The number of pairs with mutations at multiple loci increased to five when the mutation event was investigated for haplotype transfer at 28 Y-STRs including 17 Yfiler loci and 11 Y-STRs examined in this study: four father-son pairs had mutations at two loci, and one pair had mutations at three loci. Overall, mutations were frequently observed at DYS449, DYS576 and DYS627 loci, which are known to be rapidly mutating Y-STRs. Mutation rate estimates at most loci were not significantly different from rates in other populations, but estimates for DYF387S1, DYS518 and DYS570 were considerably lower in the Korean population than in other populations.
수도의 유묘기 냉해에 관한 연구 II. 주요 신품종들의 제 3 엽기 내냉한계
권용웅,김주헌,오윤진,이문희,Kwon, Y.W.,Kim, J.H.,Oh, Y.J.,Lee, M.H. 한국작물학회 1979 한국작물학회지 Vol.24 No.2
Indica \times Japonica 교잡에 의해 육성된 수도신품종들의 유묘기 내냉한계와 내냉발현특성을 Janica품종들과 비교 고찰하고자 10개 품종을 유묘기 내냉성이 제일 약한 제 3 엽기에 주간 11\circ C야간 5\circ C의 저온조건에 0, 3, 4, 5, 8, 10일 처리한 결과는 다음과 같다. 1. 저온처리 전후에 주야 26\circ C / 18\circ C에서 생장한 파종 후 35일묘의 건물중이 무처리묘의 90% 이상이 되는 최장저온처리기간은 신품종들의 경우 0.8~2.8일 간으로써 특히 조생통일이 짧고 밀야 2003가 길었으며, Japonica 품종들의 경우 4.0~5.2일간으로써 신품종들보다 가역적 내냉한계기간이 배정도 길었다. 2. 저온처리에 따른 냉해발현 종료후 묘생존율이 90%이상되는 최장저온처리기간은 신품종들의 경우 3.0~5.6 일간으로써 수원 258호가 제일 짧고 수원 25001가 제일 길었으며, Japonica 품종들은 공시품종 모두 10일간 이상으로 신품종들보다 비가역적 내냉한계기간이 2~3배 이상 길었다. 3. 저온처리중 엽신변색고사율(y_1) 및 묘고사율(y_2), 저온처리 후 발현된 모신변색고사율(y_3), 묘고사율(y_4), 냉해를 받은 35일묘의 초장(y$_{5}$)과 건물중(y$_{6}$)은 모두 저온처리기간(x)과 고도로 유의한 상관성을 보였는데 특히 y_1, y_3, y$_{6}$와 높은 상관성을 보였으며, y_1~y$_{6}$들 상호간에도 모두 고도로 유의한 상관성을 보였으나 특히 y_1과 y_3, y_3와 y$_{6}$의 상관성이 컸다. 4. 냉해징상들의 발현순서와 상태들간의 상관성 분석결과로부터 가역적 및 비가역적, 직접적 및 간접적 냉해의 발생과 그들의 복합현상으로써 결과되는 관찰되는 냉해징상의 발현과정 모식도를 작성하여 그림 5에 제시하였다. 5. 수도유묘의 내냉성 평가에 있어서 가역적 피해와 비가역적 피해를 종합적으로, 그리고 정량적으로 나타내며 일반적으로 냉해를 나타내는 조사형질들 중 냉해에 가장 예민한 반응을 보이는 건물중율을 1차요인으로 취급할 것으로 제의한다. Comparative tolerance of the new rice varieties from Indicax Japonica cross to elastic and plastic chilling injuries was examined at the 3rd leaf-stage, the most sensitive stage to chilling during nursery, using a chilling chamber set 11\circ C, 13hrs. 20K lux day/5$^{\circ}C$ night. Seedlings were reared until 35 days after seeding in a 26\circ C, 13hrs. day / 18\circ C night chamber except the period of chilling treatment for 0, 3, 4, 6, 8 or 10 days. The new varieties were approximately twice susceptible to elastic injuries, and thrice susceptible to plastic injuries than the Japonica varieties in the term of chilling duration. Among the variables indicating apparant chilling injuries the reduction in dry matter responded most sensitively and differentiated well the varietal difference in chilling resistance even with shorter chilling period. Sequential aspects of the cause and effect relations involved in the development of the apparant chilling injuries are discussed and a schematic diagram is presented as Fig. 5 in the text.
Oh, C.Y.,Nam, H.S.,Kim, Y.J.,Ainsworth, R.A.,Budden, P.J. Pergamon Press ; Elsevier Science Ltd 2014 Engineering fracture mechanics Vol.124 No.-
Objective: This paper provides validation of R6 elastic-plastic J-estimation methods, via elastic-plastic finite element analyses for circumferentially cracked pipes under combined mechanical and thermal loads. Materials method: In the FE analyses, the relative magnitudes of the mechanical and thermal loads, types of thermal loads, the crack sizes and material hardening are systematically varied. Loading sequence effects for the mechanical and thermal loads are also considered. The FE elastic-plastic J values are compared with those derived using R6 elastic-plastic J-estimation methods. Results: It is shown that there are significant load order effects on elastic-plastic J for large secondary stress cases, but these are conservatively estimated using newly proposed methods in R6.
S-Noetherian properties on amalgamated algebras along an ideal
Lim, J.W.,Oh, D.Y. North-Holland Pub. Co 2014 Journal of pure and applied algebra Vol.218 No.6
Let A and B be commutative rings with identity, f:A→B a ring homomorphism and J an ideal of B. Then the subring A@?<SUP>f</SUP>J:={(a,f(a)+j)|a@?A and j@?J} of AxB is called the amalgamation of A with B along with J with respect to f. In this paper, we investigate a general concept of the Noetherian property, called the S-Noetherian property which was introduced by Anderson and Dumitrescu, on the ring A@?<SUP>f</SUP>J for a multiplicative subset S of A@?<SUP>f</SUP>J. As particular cases of the amalgamation, we also devote to study the transfers of the S-Noetherian property to the constructions D+(X<SUB>1</SUB>,...,X<SUB>n</SUB>)E[X<SUB>1</SUB>,...,X<SUB>n</SUB>] and D+(X<SUB>1</SUB>,...,X<SUB>n</SUB>)E@?X<SUB>1</SUB>,...,X<SUB>n</SUB>@? and Nagata@?s idealization.