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遗传学教材编写的体会与教学改革的新思考

遗传学教材编写的体会与教学改革的新思考

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：戴灼华王亚馥北京大学生命科学学院兰州大学生命科学学院

培养生命科学创新型人才,遗传学是各类大学本科(或少数专科)学生必修而重要的基础课。《遗传学》教科书在遗传学教学中具有不可或缺的作用。编写出版优质的《遗传学》教材是一项系统工程。教材不是专著,它是一本最难写的书。在编写《遗... 详细信息

培养生命科学创新型人才,遗传学是各类大学本科(或少数专科)学生必修而重要的基础课。《遗传学》教科书在遗传学教学中具有不可或缺的作用。编写出版优质的《遗传学》教材是一项系统工程。教材不是专著,它是一本最难写的书。在编写《遗传学》第2版教材的实践中,我们认为一本受广大读者喜爱的好教材首先应具有学院派风格,其学术特色是:1.传承遗传学百年发展历程中里程碑式的学术成就,详实而严谨地记述中外遗传学前辈们的经典实验分析与重要发现。2.保持本学科知识的系统性和完整性,阐述遗传学的基本规律、基本理论、基本概念和基本方法的知识要点。3.从不同视角、不同层面展示遗传学各分支领域的新成果和发展前沿,拓宽知识面。4.追踪学习和研究国外知名教科书——《(An)Introduction to Genetic Analvsis》和专著——《Genes》,吸取其遗传分析的理念和其他精华。其次,要组织有教学经验的一线教授参编,并注意发挥其各自在分支学科研究的专长。其三主编对全书严格把关,要有统领全书的能力与责任。最后,出版的印制要精致。各方共同努力守住对全书质量负责的底线。

关键词：新思考《遗传学》教材编写

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骨髓间充质干细胞在肿瘤微环境中发生瘤性转化研究

骨髓间充质干细胞在肿瘤微环境中发生瘤性转化研究

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：张春敏白璐崔向荣燕莎崔建邦尹耐靖朱静重庆医科大学附属儿童医院儿科研究所

骨髓间充质干细胞（mesenchymal stem cells,MSCs）具有多项分化潜能和自我更新能力等特质,广泛应用于组织细胞的替代治疗,有望成为肿瘤靶向治疗的载体,因此MSCs的安全使用是一个至关重要的问题。本文将转染了携带绿色荧光蛋白的腺病毒... 详细信息

骨髓间充质干细胞（mesenchymal stem cells,MSCs）具有多项分化潜能和自我更新能力等特质,广泛应用于组织细胞的替代治疗,有望成为肿瘤靶向治疗的载体,因此MSCs的安全使用是一个至关重要的问题。本文将转染了携带绿色荧光蛋白的腺病毒（Ad-GFP）的SD大鼠MSCs细胞和大鼠C6脑胶质瘤细胞进行直接接触共培养7d后,应用免疫荧光方法检测各组细胞中C6脑胶质瘤细胞特异性蛋白胶质纤维酸性蛋白（GFAP）的表达情况,结果表明共培养组GFPMSCs细胞较单独培养组MSCs细胞GFAP蛋白表达水平明显增高,提示MSCs在肿瘤微环境中可能发生瘤性转化。下一步将进行动物实验,研究MSCs在活体肿瘤微环境中发生的变化,并筛选特异性致MSCs发生瘤性转化的因子及机制。

关键词： MSCs 肿瘤微环境

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Silencing of soybean Acyl-ACP thioesterase B (GmFatB) increases palmitoleic acid accumulation in soybean oil

Silencing of soybean Acyl-ACP thioesterase B (GmFatB) increa...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者： XUE Jin-Ai MAO Xue YANG Zhi-Rong JIA Xiao-Yun WU Yong-Mei GAO Xiu-Qing HUANG Chun-Guo ZHANG Li WANG Ji-Ping LI Run-Zhi Institute of Molecular Agriculture & Bioenergy Shanxi Agricultural University

Acyl-acyl carrier protein(ACP) thioesterases are enzymes that terminate the intraplastidial fatty acid synthesis in plants by hydrolyzing the acyl-ACP intermediates and releaseing free fatty acids to be incorporated into glycerolipid in the endoplasmic reticulum(ER) These enzymes are classified in two families,FatA and FatB,which differ in amino acid sequence and substrate *** previously isolated and identified both FatA and FatB from a high palmitoleic acid accumulator plant,indicating that FatB has a high preference towards palmitoyl-ACP and selectively transport acyl-ACP 16:0 from plastid to *** this work,we characterized five GmFatBs from soybean by bioinformatics tools and experimental analysis in *** high expressions limited palmitoleic acid synthesis in soybean *** RNA silencing technique was employed to down-regulated all five GmFatB expressions in seeds with a goal to increase palmitoleic acid synthesis for healthy oil *** to the non-transgenic seeds,the transgenic soybean developing seeds exhibited 67%reduction of all five GmFatB ***,acyl-ACP 16:0 content in plastid was enhanced by 39% Therefore,more acyl-ACP 16:0 substrates were provided for acy1-ACP-A9 desaturase to produce high level of acyl-ACP palmitoleic acid(C16:1△9) in the *** engineered soybean oil with 10%palmitoleic acid was obtained(Fig 1),and those transgenic plants showed no changes in other *** engineered soybean oil could be used for commercial production of this unusual fatty acid for human food,health and *** present results demonstrate that high-valued unusual fatty acids such as palmitoleic acid can be synthesized and accumulated in common oil seeds by metabolic engineering approach.

关键词： ACP GmFatB Silencing of soybean Acyl-ACP thioesterase B increases palmitoleic acid accumulation in soybean oil

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XBP1S,a BMP2-inducible transcription factor,Accelerates Endochondral Bone Growth by activating GEP Growth Factor

XBP1S,a BMP2-inducible transcription factor,Accelerates Endo...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者： Feng-Jin Guo Peng Zhang Xiaofeng Han Rong Jiang Meiling Li Fei Xia Department of Cell Biology and Genetics Core Facility of Development BiologyChongqing Medical University Laboratory of Stem Cells and Tissue Engineering Chongqing Medical University

We reported earlier that transcription factor XBPIS binds to RUNX2 and enhances chondrocyte hypertrophy through functions as a cofactor of *** we report that XBP 1S is a key downstream molecule of BMP2,and it is required for BMP2-mediated chondrocyte ***1S is upregulated during chondrocyte differentiation and demonstrates the temporal and spatial expression pattern during skeletal ***1S stimulates chondrocyte differentiation from mesenchymal stem cells in vitro and endochondral ossification ex *** also show that XBP1S activates granulin-epithelin precursor(GEP) growth factor and endogenous GEP is required for XBP1S-stimulated chondrocyte hypertrophy,mineralization,and endochondral bone formation. In addition,XBP1S acts as a new GEP regulator and increases GEP-stimulated endochondral bone formation:(1) overexpression of XBP1S stimulates chondrogenesis in vitro and chondrocyte hypertrophy,mineralization,and endochondral bone growth ex vivo;(2) XBP1S is a downstream molecule of BMP2 and is required for BMP2 stimulation of chondrogenesis;(3) XBP1S increases GEP expression in chondrogenesis and enhances chondrogenesis through GEP;(4) XBP1S accelerates the chondroinductive activity of GEP. Collectively,these findings demonstrate that XBP1S,a BMP2-inducible transcription factor, positively regulates endochondral bone formation by activating GEP chondrogenic growth *** reveals a novel critical role of XBP 1S in chondrocyte differentiation and the molecular events both in vivo and in vitro.

关键词： X-box binding protein 1 spliced(XBP1S) chondrogenesis GEP BMP2 unfolded protein response

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Islet-1 Promotes Cardiac Specific Differentiation of C3H10T1/2 Cells through Histone Acetylation Regulation

Islet-1 Promotes Cardiac Specific Differentiation of C3H10T1...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：尹耐靖 Lu Rong LIN Jian-ping ZHI Shen-shen YANG Chun-mei ZHANG Chun-min TlAN Jie 朱静 Children's Hopsital of Chongqing Medical University Pediatric Research Institute Children's Hopsital of Chongqing Medical University Cardiovascular Department(Internal Medicine)

Objective To investigate the effect of Islet-1 on the process of mesenchymai stem cells (MSCs) differentiation into cardiomyocyte-like cells and its *** statement in the past years,MSCs have been focused on in many experimental trails because they were easily available and with the capacity of differentiating into cardiomyocyte-like *** have shown that histone acetylation and deacetylation regulation played an important role in the process of MSCs transformation into cardiomyocyte-like *** the exact mechanism of histone acetylation and deacetylation regulation during MSCs differentiating into cardiomyocyte-like cells is not yet *** was reported that the histone acetylases(HATs) and deacetylases(HADCs) markedly lack the cardiac specific gene binding ***,HATs and HADCs can not specifically bind on the cardiac specific genes and regulate their expression ***-I,a subtype of the LIM-HD subfamily,contains a DNA binding site and two LIM domains,had a capacity of combining with GCN5,which is one of HATs family involved in cardiomyocyte, hepatocyte,bone and neuron *** studies has demonstrated that lslet-1 is crucial to cardiac development and cardiomyocyte *** hypothesis that Islet-1 is a key factor during the progress of MSCs specifically differentiating into cardiomyocyte-like cells and its effect is probably through the histone acetylation and deacetylation *** Lentiviral vectors that express Islet-1(Lenti-lslet-1) were constructed and used for C3H10T1/2 cells ***-1,Gata4,Nkx2.5 and Mef2c gene expression in the transfected C3HI0T1/2 cells were detected by q-PCR,cTnT expression was detected by western blotting and immunofluorescent ***-cardiac specific proteins ALB,BALP and GFAP were detected by western blotting,AFP,BGP and Nestin gene expression were detected by q-PCR. Histone acetylation level was determined by CHIP,q-PCR and Weste

关键词： Islet-1 mesenchymal stem cell cardiomyocyte differentiation histone acetylation

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Synergistic action of CBP and Cameo2 on the Cellular Lutein Uptake in Silkworm,Bombyx mori

Synergistic action of CBP and Cameo2 on the Cellular Lutein ...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：王炜 Mao-Hua Huang Xiao-Long Dong Chun-Li Chai Cai-Xia Pan Hui Tang Yan-Hong Chen Fang-Yin Dai 潘敏慧鲁成 State Key Laboratory of Silkworm Genome Biology Southwest University Key Laboratory for Sericulture Functional Genomics and Biotechnology of Agricultural Ministry Southwest University

The yellow-red color cocoon formation of Bombyx mori is due to the selective delivery of carotenoids from midgut lumen into silk gland,and is thought to be mediated by specific cellular carotenoids carrier *** researches have determined that CBP and Cameo2 are the products of the yellow blood(Y) gene and the yellow cocoon(C) gene of silkworm,*** the yellow cocoon variety,they are mainly responsible for the selective delivery of lutein into middle *** CBP and Cameo2 are expressed in the same tissues of the larval body of the C allele strain with the background of the Y allele and the Y gene is also involve in the absorption of other carotenoids such asβ-carotene from the midgut lumen into midgut mucosal cells,speculating that the selective delivery of carotenoids to specific tissues might requires the combined action of CBP and *** order to prove the postulation and make clear their respective contribution in the cellular transport of *** interrelation between the type and content of carotenoids and the gene expressing of CBP and Cameo2 in different tissues from four silkworm varieties producing different color cocoons were *** the same time,the contribution of CBP and Cameo2 in cellular carotenoids uptake was researched in cell *** results show that CBP and Cameo2 genes were expressed simultaneously only in the tissues accumulating large amounts of *** co-expressing CBP and Cameo2 can absorb higher lutein than the control group and the cells expressing single protein group,differences are very significant(P<0.01),and the cellular uptake of lutein was concentration-dependent and *** Cameo2 and CBP were located in different region of the ceils,the former was localized at the plasma membrane,and the latter in the entire *** fluorescence complementation(BiFC) analysis showed that there was potential interaction between CBP and Cameo2 in the area near the plas

关键词： Bombyx mori cocoon color synergistic action CBP Cameo2 lutein β-carotene

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NB-ARC RGAs enhance resistibility to stripe rust in Triticum aestivum but not the resistance gene from genetics

NB-ARC RGAs enhance resistibility to stripe rust in Triticum...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者： ZHANG Hong WANG Chang-You WANG Ya-Juan JI Wan-Quan State Key Laboratory of Crop Stress Biology for Arid Areas College of Agronomy(Northwest A&F University)

Wheat（Triticum aestivum） production is seriously threatened by Puccinia striiformis f. *** West（Pst） worldwide,and R-genes are considered the most cost-effective stratagem to minimize the *** most abundant R genes belong to the NB-LRR *** date,hundreds of R genes with NB-LRR domains have been reported and dissected in arabidopsis,rice,barley,maize, and so on,whereas knowledge concerning NB-ARC genes has been limited,especially in hexaploid *** wheat NB-ARC orthologues were identified and characterized,and named TaYRGs（YRGIa,1b,2-6）.The cDNA of TaYRG1a consisted of 4147 nucleotides and contained an open reading frame of 2889 nucleotides encoding a polypeptide of 962 amino acids（aa）,while TaYRG6 encoded a polypeptide of 136 *** estimated molecular weight of TaYRG1 protein was 108.2 kD with a pI of *** with TaYRG1,the constructs of TaYRG2,YRG3,YRG4, YRG5 and YRG6,showed 675+63,1537,2107,2387 and 2478-bp deletions but contain conserved 5'and 3' ***,the 2387-bp deletion was replaced with a 551-bp insertion in TaYRG5 Since all of these genes are captured from mRNA and appeared in order following the primary TaYRGi,we inferred that TaYRG2,YRG3,YRG4 and YRG6 were transcribed with exon skipping and alternative 5' and 3' splicing site types in the process of post-transcription,while TaYRG5 was formed with intron *** exclusive exons exited in the proceeding of TaYRG4 and *** to TMpred,four transmembrane helices existed at *** analysis indicated that TaYRGs were involved in plant defense against Pst ***,in the compatible interaction,transcript accumulation was nearly *** levels in hyper-susceptible lines,Xiaoyan 22 and Mingxian 169 are substantially lower than that in the common immune wheat lines Shaamnai 139 and Yuanfeng ***,the expression of TaYRGs in immune hexaploid wheat was significantly greater than that in diploid species at

关键词： wheat Puccinia striiformis f.sp.tritici West NB-ARC Subcelluar localization RNAi,enhanced immune resistance

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Paternal ethanol exposure and behavioral abnormities in offspring and association with alterations in the methylation of imprinted genes

Paternal ethanol exposure and behavioral abnormities in offs...

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者： Fei Liang Lei Diao Jun Liu Nan Jiang Jin Zhang Huijun Wang Wenhao Zhou Guoying Huang Duan Ma Key Laboratory of Molecular Medicine Ministry of EducationDepartment of Biochemistry and Molecular BiologyInstitute of Medical SciencesShanghai Medical CollegeFudan University Children Hospital Fudan University

Many previous studies have shown that maternal ethanol exposure can induce physical and mental disorders in offspring,but the effect of paternal ethanol exposure on offspring is not *** changes in methylation in imprinted genes may be related to the teratogenic effects of ethanol,which have featured in many recent *** the present work,gavage doses of ethanol (0 g/kg,1.1 g/kg,3.3 g/kg) were administered to male Kunming(KM) *** a behavioral study was performed on their F1 *** behavioral experiments revealed that the F1 mice whose fathers had been exposed to the high dose of ethanol had delayed performance of learning and memory relative to the offspring whose fathers had been exposed to the lower dose of ethanol. F1 female mice whose male parents were exposed to the high dose of ethanol also had significant increased anxiety and *** results indicated that chronic ethanol exposure to male mice affects the offspring's cognition and *** paternally(H19) and three maternally(Peg3 Ndn and Snrpn) imprinted genes were assessed in paternal sperm and in the cerebral cortexes of *** methylation was observed at imprinted genes DMR in paternal sperm(H19 and Peg3),and the same changes in methylation changes(CpG7 and CpG11 in Peg3) were observed in the offspring's cerebral *** decreased methylation was also observed at the Snrpn DMR in the F1 and F2 progeny of mice exposed to the high dose of *** results suggest that chronic paternal ethanol exposure can affect the methylation of imprinted genes in sperm and may be passed on to their offspring and leading to mental deficits.

关键词： paternal ethanol exposure offspring learning and memory mood methylation imprinted genes

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肿瘤遗传学研究的问题与思考

肿瘤遗传学研究的问题与思考

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：郝佳洁王明荣中国医学科学院肿瘤医院分子肿瘤学国家重点实验室

染色体和基因组改变是实体肿瘤的突出特征,是肿瘤遗传学领域研究的重要内容。实体瘤细胞几乎总存在遗传学水平的异常,涉及染色体和基因组DNA的扩增、缺失、杂合性丢失等拷贝数变化、以及重排和突变。联合应用染色体CGH、array-CGH、real... 详细信息

染色体和基因组改变是实体肿瘤的突出特征,是肿瘤遗传学领域研究的重要内容。实体瘤细胞几乎总存在遗传学水平的异常,涉及染色体和基因组DNA的扩增、缺失、杂合性丢失等拷贝数变化、以及重排和突变。联合应用染色体CGH、array-CGH、real-time PCR、微卫星PCR以及多靶多色FISH技术,可以发现和鉴定肿瘤扩增、缺失和杂合性丢失的基因。结合array-CGH检测、转录组测序、多靶多色FISH以及PCR分析,可以发现和鉴定肿瘤基因的断裂、截短及重排。通过外显子组测序和深度测序分析,可以发现和鉴定肿瘤中的基因突变。肿瘤遗传学水平变化的发现将为揭示细胞癌变和肿瘤发生发展的分子机理提供重要的线索,而进一步验证这些变化所导致的RNA水平、尤其是蛋白质水平的异常更为重要。我们将对肿瘤遗传学研究的方法学进行探讨,包括各种分子细胞遗传学、分子遗传学检测的局限性及其可能的解决方案。例如,怎样研究拷贝数变化,如何分析杂合性丢失,所测遗传学变化何为因果,等等。

关键词：肿瘤遗传学基因畸变拷贝数变化

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三三连锁杂合自交群体基因纯合效应的定量模型研究

三三连锁杂合自交群体基因纯合效应的定量模型研究

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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：许时伦赵香连王春平胡彦民驻马店农业学校河南农业大学农学院

了解杂种后代基因纯合的程度可以有效提高育种中选择的把握度和预测性。根据两个亲本的基因型,预测杂交组合后代基因型的纯合程度或比例很有要意义。根据遗传图谱、两个亲本等位基因的芹异和连锁遗传规律、自由组合规律,应用数学建模的... 详细信息

了解杂种后代基因纯合的程度可以有效提高育种中选择的把握度和预测性。根据两个亲本的基因型,预测杂交组合后代基因型的纯合程度或比例很有要意义。根据遗传图谱、两个亲本等位基因的芹异和连锁遗传规律、自由组合规律,应用数学建模的方法,建立了具有各同源染色体上3对连锁基因的杂交组合后代基因型纯合程度的预测洲模型和数学期望。研究结果表明,杂种后代基因型的纯合程度和比例是可以遗传的,其中自交后代某一世代的基因纯合率模型为:G(t)=tΣk=1[g1(tk)+g2(tk)+g3(tk)+g4(tk)],G(t,n)=nПi=1tΣk=1[[g1(tk)+g2(tk)+g3(tk)+g4(tk)]。多对染色体3对连锁基因自依据模型编制计算机程序,并参照小麦遗传图谱模拟了小麦杂交组合后代基因型纯合程度的分布规律。此结论为遗传育种提供理论研究上的支持。

关键词：连锁基因自交后代基因纯合效应概率

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