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Pushpendra KG Harindra SB Pawan LK Neeraj K Ajay K Reyazul RM Amita M Jitendra K 《Journal of Zhejiang University. Science. B》2007,8(11):807-814
Quantitative trait loci (QTL) analysis was conducted in bread wheat for 14 important traits utilizing data from four different mapping populations involving different approaches of QTL analysis. Analysis for grain protein content (GPC) sug- gested that the major part of genetic variation for this trait is due to environmental interactions. In contrast, pre-harvest sprouting tolerance (PHST) was controlled mainly by main effect QTL (M-QTL) with very little genetic variation due to environmental interactions; a major QTL for PHST was detected on chromosome arm 3AL. For grain weight, one QTL each was detected on chromosome arms 1AS, 2BS and 7AS. QTL for 4 growth related traits taken together detected by different methods ranged from 37 to 40; nine QTL that were detected by single-locus as well as two-locus analyses were all M-QTL. Similarly, single-locus and two-locus QTL analyses for seven yield and yield contributing traits in two populations respectively allowed detection of 25 and 50 QTL by composite interval mapping (CIM), 16 and 25 QTL by multiple-trait composite interval mapping (MCIM) and 38 and 37 QTL by two-locus analyses. These studies should prove useful in QTL cloning and wheat improvement through marker aided selection. 相似文献
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To meet the demands of industry, the skill base necessary for information systems personnel has broadened in scope to encompass not only technical abilities but competence in team work, communication, and creativity, and an understanding of business functions. The traditional approach to information systems curricula, however, may not fully serve to address these areas in student development. This paper proposes the use of a capstone information systems course as a part of an information systems education to develop students’ abilities and skills needed in the integrative information systems/technology and business areas. It is argued that a properly designed and taught capstone course offers curriculum flexibility and can satisfy the requirements of stimulating the creative mind to integrate various interrelated concepts, and acquisition of practical knowledge. 相似文献
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This study examined whether audiovisual computer training without linguistic material had a remedial effect on different learning disabilities, like dyslexia and ADD (Attention Deficit Disorder). This study applied a pre‐test–intervention–post‐test design with students (N = 62) between the ages of 7 and 19. The computer training lasted eight weeks occurring twice a week for 15 minutes per session. After the training period, an improvement in the auditory‐visual matching test was found. According to the hypothesis of this study, the youngest children with dyslexia would benefit most from the intervention. However, the training had also a positive effect on auditory‐visual matching with older students with dyslexia. Surprisingly, the students with ADD benefited from this intervention. According to the teachers, this intervention had also a positive effect on the students' school behaviour. 相似文献
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