 |
|
 ผลงานตีพิมพ์ในวารสารวิชาการAnalysis of allele fidelity, polymorphic information content, and density of microsatellites in a genome-wide screening for hip dysplasia in a crossbreed pedigreeผู้แต่ง: Mateescu, RG, Zhang, Z, Tsai, K,  Dr.Janjira Phavaphutanon, Assistant Professor , Burton-Wurster, NI, Lust, G, Quaas, R, Murphy, K, Acland, GM, Todhunter, RJ, วารสาร: 
|
|
ผลงานตีพิมพ์ในวารสารวิชาการAanlysis of Allele Fidelity, Polymorphic Information Contenet, and Density of Microsatellites in a Genome-Wide Screening for Hip Dysplasia in a Crossbreed Pedigreeผู้แต่ง:R.G. Mateescu, Z. Zhang, K. Tsai, Dr.Janjira Phavaphutanon, Assistant Professor, N.I. Burton-Wurster, G. Lust, R. Quaas, K. Murphy, G.M. Acland, R.J. Todhunter, วารสาร: 
|
ผลงานตีพิมพ์ในวารสารวิชาการEfficiency of short-grain rice breeding program between pedigree and single seed descent methods for yield, biotic resistance and cooking quality derived from indica x japonicaผู้แต่ง:Peeranut THONGYOS, Possawat NARUMOL, Uthomphon SAICHOMPOO, Sulaiman Cheabu, Teerarat Ittisoponkul, Dr.Tosapon Pornprom, Associate Professor , Dr.Witith Chai-arree, Lecturer , Dr.Chanate Malumpong, Associate Professor , วารสาร: 
|
 |
การประชุมวิชาการBreeding program for short grain rice (Oryza sativar L.) in Koshihikari genetic background with resistance to environmental stresses by using pedigree selection, Genotype by Sequencing and Marker Assisted Selectionผู้แต่ง:Dr.Chanate Malumpong, Associate Professor, อุทุมพร ศรีชมภู, พศวัต นฤมล, ภวัตร นาควิไล, พีระณัฐ ทองยศ, เอกชูพงศ์ นันตา, ปฐมพงษ์ ทิพย์ปัญญา, สุไลมาน เจ๊อาบู, การประชุมวิชาการ: |
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการEvaluation of radiographic and genetic aspects of hereditary subluxation of the radial head in Bouviers des Flandresผู้แต่ง:Dr.Jedee Temwichitr, Assistant Professor , Leegwater, P.A.J., Auriemma, E., Van't Veld, E.M., Zijlstra, C., Voorhout, G., Hazewinkel, H.A.W., วารสาร: |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Efficiency of Pedigree and Single Seed Descent Selections for Yield Improvement at Generation 4 (F4) of Two Yardlong Bean Populations) ผู้เขียน:Teerawat Sarutayophat, Charassri Nualsri สื่อสิ่งพิมพ์:pdf AbstractThe efficiency of the selection procedure during succeeding generations is the most important role of any breeding program. There are many selection methods, but no method is perfect for general use with all crop plants. Breeders must carefully consider which method will be the most effective for their purposes. This study was conducted to compare the effectiveness between the pedigree selection (PS) and single seed descent (SSD) methods in two yardlong bean crosses. Both procedures started from the same F2 population in each cross. In 2004, 15 F4 progenies were selected by each selection method from each population. Thirty F4 progenies and the parents of each population were tested in separate experiments with two check cultivars at the Songkhla Field Crop Research Station, Songkhla Province. Selected-PSU and VU135 were grown as check yardlong bean cultivars. Narrow sense heritability (h2) for the pod yield and yield components were estimated through regression analysis of the F4 progenies on F3 parental plants. Correlations among yield and yield components were also estimated. The results showed that the mean pod yield and yield components of selected F4 progenies derived from both PS and SSD were not significantly different in both the 4501 and 4502 populations. Low heritability for pod yield per plant was found in both the 4501 and 4502 populations at 4.62 and 2.96%, respectively, which indicated why selection for yield improvement in early generations had been ineffective. The highest positive correlation was found between the number of pods per plant and pod yield in both the 4501 and 4502 populations, with correlation coefficients of 0.7540 and 0.9229 (p<0.01), respectively. This study shows that PS and SSD are equally effective for yield improvement in yardlong bean. |
 |
 |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Breeding of Soybean (Glycine max (L.) Merrill) for Field Weathering Resistance by Pedigree Method) ผู้เขียน:Phan THI THANH, ดร.ประภา ศรีพิจิตต์, รองศาสตราจารย์ , ดร.วาสนา วงษ์ใหญ่, รองศาสตราจารย์, นางสุนันทา จันทกูล, ผู้ช่วยศาสตราจารย์, Arom Sripichitt สื่อสิ่งพิมพ์:pdf AbstractBreeding of soybean for field weathering resistance was conducted by hybridization between commercial variety CM60 which is susceptible to field weathering and two field weathering resistant varieties (GC2796 and SJ1) in 2003. The F1 hybrid plants were grown in the greenhouse at the Department of Agronomy, Kasetsart University and the F2 to F4 progenies were planted in the field at National Corn and Sorghum Research Center, Nakhon Ratchasima province. Field weathering resistance of soybean was evaluated from some seed characteristics involving seed germinability after accelerated aging, seed vigor estimated from the electrical conductivity of seed leachates, percentage of seed coat and seed coat thickness. Selection was done in each succeeding generation from F2 to F4 using pedigree method for plants/lines which had high seed germinability and vigor, high percentage and thickness of seed coat and good agronomic characters. The yield trial of 17 F5 lines was performed at National Corn and Sorghum Research Center in rainy season 2005. Six F5 lines having high seed yield, field weathering resistance and good agronomic characters were selected. These promising lines will be further evaluated for seed yield, field weathering resistance and agronomic performance in different locations. |
|
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Changes of Gene Frequencies in Synthetic Corn Populations by Two Methods of Recurrent Selection and Pedigree Selection) ผู้เขียน:ดร.กฤษฎา สัมพันธารักษ์, ศาสตราจารย์ , ระพีพงษ์ ยาวิลาศ สื่อสิ่งพิมพ์:pdf AbstractForty-five F1C0 corn hybrids were derived from diallel series of 10 selected inbreds from different sources of germplasm. AgSyn1C0 was synthesized from bulked balanced seeds of 45 F1C0. The remnant seeds were tested for their yielding ability in randomized complete block design with 4 replications simultaneously, selected plants in border rows were selfed to obtain S1C0. Forty-five S1C0 from diallel set plus 4 additional S1C0 were planted in R-49 grouped replicated honeycomb design. Top-10 F1C0 (diallel selection) and top-10 S1C0 (S1 selection) were selected from each cycle. Their pedigrees were recorded and frequencies of original lines presented in pedigree of selected lines were used to calculate gene frequencies in derived populations. Pedigree selection was also conducted from each selected S1 set from each cycle. Two cycles of selection were done to obtain AgSyn1C1, AgSyn1C2. Two selected lines from pedigree selection were added to AgSyn1C2 to obtain AgSyn1C2-Sem. Changes of gene frequency patterns by the 3 methods of selection were very similar but diallel selection and pedigree selection retained more genetic diversity than S1 selection. Therefore, there was no clear advantage of recurrent selection over the pedigree selection. However, recurrent selection enhances gene recombination and accumulation of desirable genes in the population while pedigree selection is suitable for accumulation of few desirable genes in single plant. The results suggested that recurrent selection should be a supporting program to provide desirable germplasm to pedigree program. Diallel selection not only retained more genetic diversity but needs only 2 planting seasons to complete a cycle instead of 3 planting seasons as most recurrent selections now generally in use. Therefore, diallel selection should be more effective than S1 selection for the improvement of population per se from which good inbreds could be derived. The results also suggested that genetic diversity of first few cycles of selection drastically dropped when combining ability of the original lines were widely different. |
ที่มา:การประชุมทางวิชาการ ครั้งที่ 47 มหาวิทยาลัยเกษตรศาสตร์หัวเรื่อง:การพัฒนาพันธุ์มะเขือเทศรับประทานสดทนร้อน โดยวิธีการคัดเลือกแบบบันทึกประวัติในประชากรชั่วที่11 |
ที่มา:สำนักงานกองทุนสนับสนุนการวิจัยหัวเรื่อง:แบบจำลองระดับพันธุประวัติเพื่อการศึกษาการถ่ายทอดเชิงปริมาณของสารพันธุกรรมในไมโทคอนเดรียมนุษย์ (2554-2556) หัวหน้าโครงการ:ดร.ภัสสร วรรณพินิจ, ผู้ช่วยศาสตราจารย์ |