香菇分子遗传连锁图谱研究进展

综述了香菇(Lentinula edodes)遗传连锁图谱构建的研究现状,对现有的连锁图所涉及的分子标记、作图群体、连锁群数量、图谱大小等进行了讨论,并对遗传连锁图谱意义和发展前景进行了分析与展望.     

计算机几何造型技术在工程图学CAI课件中的应用

利用组合体形体分析法对组合体几何造型方法进行了研究,采用边界表示法,以面、环、边、点层次结构来定义物体,并进行体素拼合运算和相应的图形显示处理。自行开发的软件系统实现了交互式基本体素的造型,通过拼合运算生成组合体,并根据造型产生的立体几何信息及拓扑信息进行图形变换。     

试论网络多媒体辅助有机化学教学

网络多媒体辅助教学(N M C AI)是计算机辅助教学(CAI)的又一应用。本文就网络多媒体辅助教学在有机化学教学中的作用、有机化学网络多媒体课件的制作原则和应用网络多媒体教学可能出现的问题进行了论述。     

三种药物对鸡盲肠球虫病预防试验

试验应用鸡公雏,检测了人工合成青蒿素对鸡盲肠球虫病的预防效果.根据抗球虫指数(CAI)判定,该药物能很好控制人工感染鸡盲肠球虫病引起的死亡,但对该病总的预防效果较差,表明该人工合成青蒿素不适于用作鸡盲肠球虫病临床的防治药物.杀球灵为高效抗球虫药物.     

高师非计算机专业《计算机辅助教学》课程内容的构建

构建高等师范院校非计算机专业《计算机辅助教学》课程内容体系,论述课件设计工具的选取以及该课程应突出讲解的内容,旨在使非计算机专业学生经过有限的学习和实践,具备一定的课件设计能力。     

用Powerpoint制作信息检索课教学课件的实践

作者依据用Powerpoint制作信息检索课教学课件的实践，从幻灯片内容和素材的选择入手，对幻灯片的编辑、图文及背景的处理、动画的设置和幻灯片的保存等几个方面进行了介绍。     

果树修剪多媒体CAI课件的开发

论述了利用计算机多媒体技术开发“果树修剪多媒体CAI课件”的设计思想、原则、特色、结构模型及制作的过程和步骤。该课件的制作具有一定的实用价值,对其它类似课件的开发有启发和借鉴作用。     

多媒体课件高效开发模式的探索与实践

客观分析了目前多媒体教学中存在的问题 ,以此为基础 ,研究、设计了多媒体课件高效开发的模式 ,提出“先有积件 ,后有课件”的观点 ,认为多媒体课件的开发应突出学生的主体地位 ,教师的主导作用应体现在课件开发的思想之中。     

Assignment of unanchored scaffolds in genome of Brassica napus by RNA-seq analysis in a complete set of Brassica rapa-Brassica oleracea monosomic addition lines

The economically valuable oil crop Brassica napus(AACC, 2 n=38), which arose from interspecific hybridization between the diploid ancestors Brassica rapa(AA, 2 n=20) and Brassica oleracea(CC, 2 n=18), has a complex genome. More than 10% of the assembled sequences, most of which belong to the C subgenome, have not been anchored to the corresponding chromosome. Previously, a complete set of monosomic alien addition lines(MAALs, C1–C9) with each of the nine C-subgenome chromosomes added to the extracted A subgenome was obtained from the allotetraploid B. napus donor Oro, after the ancestral B. rapa(RBR Oro) genome was restored. These MAALs effectively reduced the complexity of the B. napus genome. Here, we determined the expression values of genes on unanchored scaffolds in the MAALs and RBR Oro. Then, multiple comparisons of these gene expression values were used to determine the affiliations of the nonanchored scaffolds on which the genes were located. In total, 54.68%(44.11 Mb) of the 80.67 Mb of non-anchored scaffolds belonging to the C subgenome were assigned to corresponding C chromosomes. This work highlights the potential value of these MAALs in improving the genome quality of B. napus.     

Breeding and biotechnological efforts in Jatropha curcas L. for sustainable yields

Jatropha is a non-edible, important bioenergy plant, which can grow in marginalized land. The seeds possess about 36% oil and this would be converted into biodiesel or biojet-fuel. Jatropha provides an option for sustainable feed and fuel production due to its inherent qualities including hardy nature, drought tolerance and surviving with limited amount of water, tolerance to unfavorable conditions and excessive moisture. However, heterozygosity, low productivity and poor understanding of its genome are the major impediments to elite line development. Further, classical breeding and advanced technological investments remain limited owing to long juvenile phase and breeding cycles. Scientific technologies that lead to identification of elite genotypes and development of high yielding elite Jatropha lines and effective methods of detoxification of seeds needs immediate priority. Efficient tissue culture system, doubled haploids (DH) and genomic tools are increasingly made available to improve the seed yield and its oil quantity through the development of geminivirus disease resistant lines. The application of advanced, sequencing technologies has presented a repertoire of genomic information for this important yet orphan crop. In the present investigation, we highlight the achievements made in Jatropha towards development of high yielding, virus resistant elite lines and hybrids with yield potential ranging from 3 to 5 tons per hectare in a year, which is a first ever report in the world. We also developed potential biotechnological tools such as genetic transformation, genome editing and next generation genomics tools including linkage maps and QTLs for accelerating breeding efforts through marker assisted selection. Because of our concerted and continuous efforts during the past 15 years, we have overcome all the obstacles and developed high yielding, disease resistant hybrids/lines, advanced cultivation technologies with thorough knowledge on Agronomy of the Jatropha crop. The Jatropha cultivation technology developed for the first time in the world, could open up new avenues for higher yield productivity of commercial viability.