Acta Genetica Sinica最新文献

{"title":"Genetic Analysis for F1 Yield Traits with Conditional Approach in Island Cotton (Gossypium barbadense L.)","authors":"MEI Yong-Jun ,&nbsp;YE Zi-Hong ,&nbsp;ZHANG Li-Li","doi":"10.1016/S0379-4172(06)60118-2","DOIUrl":"10.1016/S0379-4172(06)60118-2","url":null,"abstract":"<div><p>A genetic model with additive, dominance and genotype × environment interaction effect was employed to analyze the 3-year data of F₁ hybrids from 5 × 4 diallel cross, whose parents were Island cotton and had different fruit branch types. Unconditional and conditional genetic variances were conducted for analyze genetic impacts of yield components on yield. Results of unconditional genetic variances showed that there were no additive variance of total lint yield. But conditional additive effects of total lint yield, when excluding the phenotype of boll weight, boll number at prefrost, boll number at postfrost, and lint yield at prefrost, indicated that improving the additive effects of the total lint yield was still possible. Crossing and selecting component traits with high contributive additive effects could obtain good offsprings. Yield components contributed large dominance effects to the heterosis of lint yield at prefrost and total lint yield in crosses. Yield component traits were controlled with each other. The traits having positive contributive effects could be applied to further improve target traits.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 9","pages":"Pages 841-850"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60118-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26256806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Correlation of Reproduction-Related Gene Expression with Germ Cell Number in DM and PLL Gilts","authors":"HU Yan-Biao ,&nbsp;PAN Zeng-Xiang ,&nbsp;XU Dan ,&nbsp;XU Yin-Xue ,&nbsp;LIU Hong-Lin ,&nbsp;HUANG Rui-Hua ,&nbsp;HU Zhi-Gang","doi":"10.1016/S0379-4172(06)60113-3","DOIUrl":"10.1016/S0379-4172(06)60113-3","url":null,"abstract":"<div><p>In this study, the ovarian germ cell number was counted in 3-week-old Duroc × Meishan (DM, <em>n</em>=30) and <em>PIC</em> × (Landrace × Large White) (PLL, <em>n</em>=53) gilts, and the mRNA expression levels of four reproduction-related genes were investigated by quantitative RT-PCR. Correlation of germ cell number with the expression level of these genes was analyzed. Results showed that the germ cell number of DM was significantly higher than that of PLL gilts (<em>P</em>&lt;0.01), although there was no significant difference between the ovarian weight of DM and PLL gilts (<em>P</em>=0.269). No significant correlation existed between germ cell number and ovarian weight in the two gilt groups (<em>R</em>=0.335, <em>P</em>=0.07; <em>R</em>=0.119, <em>P</em>=0.398, respectively). A significant correlation was found between the germ cell number and expression level of <em>ESR</em> and <em>IGF1R</em> mRNA in DM gilts (<em>R</em>=0.648, <em>P</em>&lt;0.05; <em>R</em>=0.757, <em>P</em>&lt;0.01, respectively), but the correlation between the germ cell number and expression level of <em>FSHR</em> and <em>INHBA</em> mRNA did not reach statistical significance. Significant correlation was found between the germ cell number and the expression level of <em>ESR, FSHR</em>, and <em>IGF1R</em> mRNA in PLL gilts (<em>R</em>=0.435, <em>P</em>&lt;0.01; <em>R</em>=0.438, <em>P</em>&lt;0.01; <em>R</em>=0.292, <em>P</em>&lt;0.05, respectively), but not with <em>INHBA</em> mRNA in PLL gilts.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 9","pages":"Pages 800-807"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60113-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26315244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"QTL Analysis for Flag Leaf Characteristics and Their Relationships with Yield and Yield Traits in Rice","authors":"YUE Bing ,&nbsp;XUE Wei-Ya ,&nbsp;LUO Li-Jun ,&nbsp;XING Yong-Zhong","doi":"10.1016/S0379-4172(06)60116-9","DOIUrl":"10.1016/S0379-4172(06)60116-9","url":null,"abstract":"<div><p>Photosynthesis of carbohydrate is the primary source of grain yield in rice (<em>Oryza sativa</em> L.). It is important to genetically analyze the morphological and the physiological characteristics of functional leaves, especially flag leaf, in rice improvement. In this study, a recombinant inbred population derived from a cross between an indica (<em>O. sativa</em> L. ssp. <em>indica</em>) cultivar and a <em>japonica</em> (<em>O. sativa</em> L. ssp. <em>japonica</em>) cultivar was employed to map quantitative traits loci (QTLs) for the morphological (i.e., leaf length, width, and area) and physiological (i.e., leaf color rating and stay-green) characteristics of flag leaf and their relationships with yield and yield traits in 2003 and 2004. A total of 17 QTLs for morphological traits (flag leaf length, width, and area), 6 QTLs for degree of greenness and 14 QTLs for stay-green-related traits (retention-degrees of greenness, relative retention of greenness, and retention of the green area) were resolved, and 10 QTLs were commonly detected in both the years. Correlation analysis revealed that flag leaf area increased grain yield by increasing spikelet number per panicle. However, the physiological traits including degree of greenness and stay-green traits were not or negatively correlated to grain yield and yield traits, which may arise from the negative relation between degree of greenness and flag leaf size and the partial sterility occurred in a fraction of the lines in this population. The region RM255-RM349 on chromosome 4 controlled the three leaf morphological traits simultaneously and explained a large part of variation, which was very useful for genetic improvement of grain yield. The region RM422-RM565 on chromosome 3 was associated with the three stay-green traits simultaneously, and the use of this region in genetic improvement of grain yield needs to be assessed by constructing near-isogenic lines.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 9","pages":"Pages 824-832"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60116-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26256804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Pharmacological Concentrations of Estrogens on Growth of 3AO Human Ovarian Cancer Cells","authors":"LI Zong-Bin,&nbsp;CHEN Yu-Xia,&nbsp;ZHAO Jie-Ying,&nbsp;LU Jian","doi":"10.1016/S0379-4172(06)60111-X","DOIUrl":"10.1016/S0379-4172(06)60111-X","url":null,"abstract":"<div><p>During the past two decades, the knowledge of the molecular mechanism by which estrogens exert various functions in different tissues and organs has evolved rapidly. Recent reports demonstrated that estrogen could decrease the cell growth in several types of cancer cells, including ovarian cancer cells. Though experiments explored the possible mechanism of the inhibitory effect, the exact mechanism is responsible for the effect, which remains unclear. The ovary is the main source of the estrogen, estrogen receptor is expressed in several ovarian cell types, including ovarian surface epithelium, the tissue of origin of approximately 90% of the ovarian cancers. It was of great interest to analyze the effects of 17β-estradiol (E2) on apoptosis of ovarian cancer cells, and the identification of E2-regulated specific genes involved in epithelial proliferation apoptosis, thus may be a clue for understanding the progression of ovarian cancer and for the design of new target therapies. To elucidate the mechanism involved, effects of pharmacological concentrations of estrogen were studied in human ovarian cancer cell line 3AO cells. Inhibition of cellular growth of 3AO cells was seen with E2 at concentrations higher than 0.1 μmol/L. The estrogen receptor inhibitor ICI 182780 cannot block the inhibitory effect of E2. It was surprising to find that ICI 182780 itself can inhibit the growth of 3AO cells, and had a collaborative effect with E2. The decreased cell growth induced by E2 was shown to be apoptosis as analyzed by flow cytometry. ERβ was detected in the 3AO ovarian cancer cell line but not ERα. The expression of ERβ was weak, which may partially explain why high but not low dose of E2 needed to induce the apoptosis of 3AO cells. We also observed that membrane impermeable E2, E2-BSA have lost growth inhibitory on 3AO cells, which excluded the membrane effect of E2 as previously reported by many investigators. The p38 kinase inhibitor, SB203580 were partially protected 3AO cells against growth inhibition by E2, while inhibitor of JNK, SP600125 enhanced cell death induced by E2. These results showed that MAPK is implicated in cellular processes involving apoptosis.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 9","pages":"Pages 782-792"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60111-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26315242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mutation p.Arg954Trp of KIF21A Causes Congenital Fibrosis of the Extraocular Muscles in a Chinese Family","authors":"ZHANG Xian-Qin ,&nbsp;PENG Jian-Hong ,&nbsp;TANG Zhao-Hui ,&nbsp;XU Cheng-Qi ,&nbsp;ZHOU Xin ,&nbsp;GONG Shu-Xian ,&nbsp;LIU Jing-Yu ,&nbsp;WANG Qing ,&nbsp;LIU Mu-Gen","doi":"10.1016/S0379-4172(06)60100-5","DOIUrl":"10.1016/S0379-4172(06)60100-5","url":null,"abstract":"<div><p>Congenital fibrosis of the extraocular muscles type 1 (CFEOM1) is an autosomal dominant strabismus disorder associated with defects of the oculomotor nerve. In this study, we identified a Chinese family with CFEOM1 for four generations. Linkage analysis mapped the causative gene of the family to 12q with a Lod score 2.1 for polymorphic marker D12S85, where <em>KIF21A</em> is located. Direct DNA sequence analysis identified a 2860C→T change in exon 21, resulting in a tryptophan substitution for arginine in codon 954 of <em>KIF21A</em>. SSCP (single-stranded conformational polymorphism) analysis showed that mutation p.Arg954Trp of <em>KIF21A</em> co-segregated with the affected members, but was absent in the unaffected individuals in the family and 150 normal controls. Our results indicate that mutation p.Arg954Trp of the <em>KIF21A</em> is the genetic basis of the Chinese family with CFEOM1.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 685-691"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60100-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26225811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the Association Between Estrogen Receptor Gene (ESR) and Reproduction Traits in Landrace Pigs","authors":"WU Zhen-Fang ,&nbsp;LIU De-Wu ,&nbsp;WANG Qing-Lai ,&nbsp;ZENG Hai-Yu ,&nbsp;CHEN Yao-Shen ,&nbsp;ZHANG Hao","doi":"10.1016/S0379-4172(06)60103-0","DOIUrl":"10.1016/S0379-4172(06)60103-0","url":null,"abstract":"<div><p>To study the potential use of estrogen receptor gene (<em>ESR</em>) as a genetic marker to improve the reproductive traits of pigs, the genotypes of the <em>ESR</em> PCR product digested by <em>Pvu</em> II were determined in 2 239 litters from 612 Landrace sows. The data of the first, second, and later parities were separately evaluated. Although the frequency of the <em>B</em> allele was much lower than that of the <em>A</em> allele, likelihood ratio test showed that the gene frequencies were in Hardy-Weinberg equilibrium. The effects of <em>ESR</em> of different parities were not equal. In summary, the sows with the <em>BB</em> genotype showed better performance for total number of piglets born (TNB) and number of piglets born alive (NBA), but had a lower average piglet weight at birth (AWB). It was concluded that <em>ESR</em> could be used as a marker for the selection of litter size in the Landrace population.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 711-716"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60103-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26226249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mapping and Marker-assisted Selection of a Brown Planthopper Resistance Gene bph2 in Rice (Oryza sativa L.)","authors":"SUN Li-Hong ,&nbsp;WANG Chun-Ming ,&nbsp;SU Chang-Chao ,&nbsp;LIU Yu-Qiang ,&nbsp;ZHAI Hu-Qu ,&nbsp;WAN Jian-Min","doi":"10.1016/S0379-4172(06)60104-2","DOIUrl":"10.1016/S0379-4172(06)60104-2","url":null,"abstract":"<div><p><em>Nilaparvata lugens</em> Stål (brown planthopper, BPH), is one of the major insect pests of rice (<em>Oryza sativa</em> L.) in the temperate rice-growing region. In this study, ASD7 harboring a BPH resistance gene <em>bph2</em> was crossed to a susceptible cultivar C418, a <em>japonica</em> restorer line. BPH resistance was evaluated using 134 F_2:3 lines derived from the cross between “ASD7” and “C418”. SSR assay and linkage analysis were carried out to detect <em>bph2</em>. As a result, the resistant gene <em>bph2</em> in ASD7 was successfully mapped between RM7102 and RM463 on the long arm of chromosome 12, with distances of 7.6 cM and 7.2 cM, respectively. Meanwhile, both phenotypic selection and marker-assisted selection (MAS) were conducted in the BC₁F₁ and BC₂F₁ populations. Selection efficiencies of RM7102 and RM463 were determined to be 89.9% and 91.2%, respectively. It would be very beneficial for BPH resistance improvement by using MAS of this gene.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 717-723"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60104-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26226250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cloning, Expression, and Mapping of GDP-D-mannose Pyrophosphorylase cDNA from Tomato (Lycopersicon esculentum)","authors":"ZOU Li-Ping ,&nbsp;LI Han-Xia ,&nbsp;OUYANG Bo ,&nbsp;ZHANG Jun-Hong ,&nbsp;YE Zhi-Biao","doi":"10.1016/S0379-4172(06)60108-X","DOIUrl":"10.1016/S0379-4172(06)60108-X","url":null,"abstract":"<div><p>GDP-D-mannose pyrophosphorylase (GMP, EC 2.7.7.22) catalyzes the synthesis of GDP-D-mannose and represents the first committed step in plant ascorbic acid biosynthesis. Using potato GMP cDNA sequence as a querying probe, 65 highly homologous tomato ESTs were obtained from dbEST of GenBank and the putative cDNA sequence of tomato GMP was assembled. The full-length GMP cDNA of tomato was cloned by RACE-PCR with primers designed according to the assembled cDNA sequence. The full-length cDNA sequence contained a complete open reading frame (ORF) of 1 086 bp, which encoded 361 amino acid residues. This gene was designated as <em>LeGMP</em> (GenBank accession No. AY605668). Homology analysis of <em>LeGMP</em> showed a 96% identity with potato <em>GMP</em> and the deduced amino acid showed 99%, 97%, 91% and 89% homology with GMP from potato, tobacco, alfalfa and <em>Arabidopsis thaliana</em>, respectively. Northern blot analysis showed that <em>LeGMP</em> was constitutively expressed in roots, stems, leaves, flowers and fruits of tomato; but the expression levels varied.<em>LeGMP</em> was mapped to 3-D using 75 tomato introgression lines (ILs), each containing a single homozygous RFLP-defined chromosome segment from the green-fruited species <em>Lycopersicon pennellii</em>.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 757-764"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60108-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26226254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"mED2—A Novel Gene Involved in Mouse Embryonic Development","authors":"DUAN Jia-Zhong ,&nbsp;ZHANG Jing-Pu ,&nbsp;ZHU Shao-Xia","doi":"10.1016/S0379-4172(06)60101-7","DOIUrl":"10.1016/S0379-4172(06)60101-7","url":null,"abstract":"<div><p>Dissection of new genes underlying embryonic development is important for our understanding of the molecular mechanism of vertebrate embryonic development. In this study, the expression pattern and functional analysis of a new gene, called <em>mED2</em>, originally cloned from mouse embryos using subtractive hybridization was reported. <em>mED2</em> expression patterns were characterized by RT-PCR-Southern hybridization and <em>in situ</em> hybridization. The results showed that <em>mED2</em> was mainly expressed in the embryonic nervous system and mesoderm-derived tissues and its expression varied depending on the embryonic developmental stages. The knockdown of <em>mED2</em> activity by antisense RNA injection inhibited zygote cleavage and blastocyst formation during pre-implantation in mice. Subcellular localization of mED2-eGFP fusion protein revealed a pattern of nuclear membrane and juxta-/perinuclear location such as in the rough endoplasmic reticulum and Golgi apparatus. This finding was supported by bioinformatics analysis, which indicated mED2 protein to be a transmembrane protein with partial homology to the thioredoxin family of proteins. It is inferred that <em>mED2</em> gene can probably take part in early embryonic development in mouse and may be involved in target protein posttranslational modification, turnover, folding, and stability at the endoplasmic reticulum and/or the Golgi apparatus.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 692-701"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60101-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26225812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"QTL Analysis of Popping Fold and the Consistency of QTLs Under Two Environments in Popcorn","authors":"LI Yu-Ling,&nbsp;DONG Yong-Bin,&nbsp;NIU Su-Zhen","doi":"10.1016/S0379-4172(06)60105-4","DOIUrl":"10.1016/S0379-4172(06)60105-4","url":null,"abstract":"<div><p>Popping fold (PF) is the most important quality trait in popcorn. In this study, a total of 259 F_2:3 families, derived from the cross between a dent corn inbred Dan232 and a popcorn inbred N04, were evaluated for their popping folds in replicated experiments under two environments. Of 613 simple sequence repeat (SSR) primer pairs screened, 183 pairs were selected to construct a genetic linkage map with the genetic distance of 1 762.2 cM (centimorgan) and on average 9.63 cM every marker. Quantative trait loci (QTL) were identified, and their genetic effects were estimated using CIM (composite interval mapping) method. The interactions among QTLs detected were calculated using MIM (multiple interval mapping) method. In all, 22 QTLs were detected, and only 5 of them were common under two environments. Contribution to phenotypic variation of a single QTL varied from 3.07% to 12.84%, and total contributions of all QTLs under two environments were 66.46% and 51.90%, respectively. Three QTLs (qPF-6-1, qPF-8-1 and qPF-1-3) with more than 10% contributions were observed. The additive effects were larger than dominant effects for most QTLs. The amount of QTLs showing additive, partially dominant, dominant and over-dominant effects were 4, 5, 0, 2 in spring sowing and 2, 5, 2, 2 in summer sowing, respectively. There were only 2.60% pairs of QTLs or maker intervals expressing <em>AA, DA</em> or <em>DD</em> interactions.</p></div>","PeriodicalId":100017,"journal":{"name":"Acta Genetica Sinica","volume":"33 8","pages":"Pages 724-732"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0379-4172(06)60105-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26226251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}