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KCI등재 학술저널

벼줄무늬잎마름병 신규 저항성 보유 유전자원 탐색

Identification of Germplasm Harboring a Novel Gene Against Rice Stripe Virus Resistance

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Rice stripe virus (RSV) is one of the major constraints in rice production which is transmitted by the small brown plant hopper, Laodelphax striatellus. Identifying new resistance genes from diverse sources is important for rice breeding programs to enhance the resistance level and/or to overcome the breakdown of resistance genes. This study was conducted to identify novel sources of resistance against RSV. We used five RSV resistant varieties that do not harbor Stv-bi. The presence of known genes for RSV resistance was identified using the InDel7 marker for Stv-b i, two Indel (Sid primer set) markers for Stv-b, and DNA sequence analysis for OsSOT1. We revealed that two varieties, 02428 (IT236925) and Tung Ting Wan Hien 1, are novel RSV resistance sources.

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