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ผลงานตีพิมพ์ในวารสารวิชาการHigh genomic affinity between Torenia baillonii and Torenia fournieri revealed by genome analysis using a triploid hybridผู้แต่ง: Nuntha, Buntarika, Kikuchi, S.,  Mr.Thunya Taychasinpitak, Associate Professor , Sassa, H., Koba, T., วารสาร:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Gamma-ray Irradiation in Plant Morphology of Interspecific Hybrids between Torenia fournieri and Torenia baillonii) ผู้เขียน:Wipaporn Sawangmee, นายธัญญะ เตชะศีลพิทักษ์, รองศาสตราจารย์, ดร.พีรนุช จอมพุก, รองศาสตราจารย์ , Shinji Kikuchi สื่อสิ่งพิมพ์:pdf AbstractGamma (?) -ray irradiation is a conventional technique to produce mutants in plant breeding. To investigate the effect of ? rays to produce flower color mutants in the genus Torenia (Linderniaceae), interspecific hybrids were exposed to acute (Cs-137) or chronic (Co-60) ?-ray irradiation combined with a detached-leaf-technique. Application of the detached-leaf technique provided irradiated plants that could be used for selection for 90 d. Although the different striking procedures produced different survival rates, the mutation efficiencies of the acute and chronic levels of irradiation for flower color showed no differences. The mutation rate was 1% for explants. The production of mutants with yellowcolored petals suggested disruption of anthocyanin synthesis. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Petal Color and Petal Form Mutations Observed in Torenia hybrida Following Gamma Irradiation in vitro) ผู้เขียน:Valerie W. Suwanseree, Tharathorn Teerakathiti, ดร.เฌอมาลย์ วงศ์ชาวจันท์, ผู้ช่วยศาสตราจารย์ , นายธัญญะ เตชะศีลพิทักษ์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe aim of this study was to develop new cultivars of Torenia hybrida for the ornamental market. Excised nodes of T. hybrida plantlets grown in vitro were exposed to 0, 0.0025, 0.0075 or 0.0125 mM colchicine or 0, 0.0028 mM, 0.0086 mM or 0.144 mM oryzalin for 48 or 72 h before subsequent in vitro multiplication. Four-week-old in vitro plantlets from the colchicine treatments were irradiated with 0, 30, 40, or 50 Gy of gamma radiation and those from the oryzalin treatments were irradiated with 0 or 60 Gy of gamma radiation. After subculturing, the plants were transferred to the field and changes in phenotype were noted. Colchicine and oryzalin treatment did not result in any polyploid plants. No variations were observed in leaf shape, color or size but variations were observed in growth habit (compact and creeping), flower color (pink and pale blue, as well as mottled or streaked purple petals), and flower form (erose petal margins). The plants with erose petal margins were selected for possible development of a new cultivar. |
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