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http://dx.doi.org/10.5010/JPB.2004.31.1.007

Establishment of a New Breeding Scheme for Rapid Release of Variety Using bar Gene Transformed Rice  

Won, Yong-Jae (National Yeongnam Agricultural Experiment Station, RDA)
Yi, Gi-Hwan (National Yeongnam Agricultural Experiment Station, RDA)
Cho, Jun-Hyeon (National Yeongnam Agricultural Experiment Station, RDA)
Ko, Jong-Min (National Yeongnam Agricultural Experiment Station, RDA)
Park, Hyang-Mi (National Yeongnam Agricultural Experiment Station, RDA)
Han, Chang-Deok (Division of Applied Life science, Plant Molecular Biology & Biotechnology Research Center, Gyeongsang National University)
Yang, Sae-Jun (National Yeongnam Agricultural Experiment Station, RDA)
Kim, Soon-Chul (National Yeongnam Agricultural Experiment Station, RDA)
Nam, Min-Hee (National Yeongnam Agricultural Experiment Station, RDA)
Publication Information
Journal of Plant Biotechnology / v.31, no.1, 2004 , pp. 7-11 More about this Journal
Abstract
This study was carried out to establish a new breeding scheme which is connected with conventional breeding method and anther culture method. To develop a herbicide resistant and direct seeding rice, $F_1$ plants were subjected to anther culture and regenerated plants from 5 crosses were studied to confirm the introduction of bar gene. After PCR analysis, we selected 227 plants which were carrying herbicide resistance gene (bar) out of 1,508 regenerated plants from anther culture. Among 169 $A_2$ lines carrying herbicide resistant gene from 5 crosses including YR23235 (Dongjin Ds3(Ba $r^{R}$)/ Milyang165), 42 lines that had superior agronomic characters were selected for further research. Among them, YR23235Acp79 which showed herbicide resistance, direct seeding adaptability and superiority in major agronomic characters was named Milyang 204. This breeding scheme proved that the anther culture of $F_1$ plants crossed between transformant and cultivar or transform ant alone could be utilized in breeding programs for a rapid progeny fixation and development of a variety.y.
Keywords
Breeding scheme; basta resistance; transformed rice; Milyang 204;
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