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벼의 F1 Hybrid를 이용한 도열병 저항성 유전자 집적
Hak Soo Suh,Mun Hue Heu,F.L. Nuque 韓國作物學會 1987 Korean journal of crop science Vol.32 No.4
서광벼/밀양5004, HR 1619-6-2-1-2-2 /밀양5004 및 55061/IR 19735-5-2-3-2-1등 3개 조합의 F1 잡종과 이들 양친품종들의 혼묘를 각각 도열병 race IA-61, IB-47, IC-13 및 IH-1 등의 단독 race와 IC-13과 IA-61, IC-13과 IB-47 및 IC-13과 IH-1 등 2 race씩의 혼합 inoculum으로 접종시켜 이들의 잎도열병 발병반을을 검토하였다. 3개 조합의 양친품종들은 단독 race에 대해서 서로 다른 반응을 보여 각각 서로 다른 저항성 유전자의 지배를 받는 것으로 나타났다. 이들 서로 다른 정항성 유진자를 가진 양친품종들은 반응이 다른 2 race 씩의 혼합 inoculum에 대해서 모두 이병성이었으나 이들간의 F1 잡종은 모두 저항성이었다. 저항성 유전자가 서로 다른 양친품종간의 F1 잡종은 저항성 유전자의 집적효과로 인해 양친보다 광범한한 저항성을 나타내었다. Three F1 hybrids, Seokwang/Milyang 54, HR1619-6-2-1-2-2/Milyang 54 and 55061/IR19735-5-2-3-2-1, and their parents were inoculated with each of four individual blast races, IC-l3, IH-l, IA-61 and IB-47, and the mixtures of two races, IC-13 and IH-l, IC-13 and IA-61, and IC-13 and IB-47, respectively. The varietal reactions to the tested races showed that two parental varieties of each cross, Seokwang and Milyang 54, HR1619-6-2-1-2-2 and Milyang 54, and 55061 and IR19735-5-2-3-2-1 have different resistance gene(s) respectively. The F 1 hybrids between two cultivars having different resistant genes were resistant to the mixture of two races of which one race was virulent to one parent and avirulent to the other parent respectively, while the parents of these F1 s were susceptible. This may suggest that the F1 hybrids have wider spectrum resistance to leaf blast than their parents.
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Pyramiding Resistance Genes to leaf Blast in Rice through $F_1$ Hybrid
Hak Soo, Suh,Mun Hue, Heu,F.L., Nuque The Korean Society of Crop Science 1987 Korean journal of crop science Vol.32 No.4
서광벼/밀양5004, HR 1619-6-2-1-2-2 /밀양5004 및 55061/IR 19735-5-2-3-2-1등 3개 조합의 F$_1$ 잡종과 이들 양친품종들의 혼묘를 각각 도열병 race IA-61, IB-47, IC-13 및 IH-1 등의 단독 race와 IC-13과 IA-61, IC-13과 IB-47 및 IC-13과 IH-1 등 2 race씩의 혼합 inoculum으로 접종시켜 이들의 잎도열병 발병반을을 검토하였다. 3개 조합의 양친품종들은 단독 race에 대해서 서로 다른 반응을 보여 각각 서로 다른 저항성 유전자의 지배를 받는 것으로 나타났다. 이들 서로 다른 정항성 유진자를 가진 양친품종들은 반응이 다른 2 race 씩의 혼합 inoculum에 대해서 모두 이병성이었으나 이들간의 F$_1$ 잡종은 모두 저항성이었다. 저항성 유전자가 서로 다른 양친품종간의 F$_1$ 잡종은 저항성 유전자의 집적효과로 인해 양친보다 광범한한 저항성을 나타내었다. Three F$_1$ hybrids, Seokwang/Milyang 54, HR1619-6-2-1-2-2/Milyang 54 and 55061/IR19735-5-2-3-2-1, and their parents were inoculated with each of four individual blast races, IC-l3, IH-l, IA-61 and IB-47, and the mixtures of two races, IC-13 and IH-l, IC-13 and IA-61, and IC-13 and IB-47, respectively. The varietal reactions to the tested races showed that two parental varieties of each cross, Seokwang and Milyang 54, HR1619-6-2-1-2-2 and Milyang 54, and 55061 and IR19735-5-2-3-2-1 have different resistance gene(s) respectively. The F 1 hybrids between two cultivars having different resistant genes were resistant to the mixture of two races of which one race was virulent to one parent and avirulent to the other parent respectively, while the parents of these F$_1$s were susceptible. This may suggest that the F$_1$ hybrids have wider spectrum resistance to leaf blast than their parents.
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Hak Soo Suh(徐學洙),Mun Hue Heu(許文會),에푸 엘 누쿠(F.L. Nuque) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
Eight rice genetic stocks with characters of waxiness, chromogen, dripping wet, ligulelessness, laziness, brittle culm, glabrousness, and long hairiness on leaf surface, were crossed to a rice line IR1905-81-3-1, which was normal for these morphological or physiological characters. The eight genetic stocks were susceptible to Pyricularia oryzae races IB-47 (isolate P06-6), IH-1 (isolate 43), and II-1 (isolate 43-1), while IR1905-81-3-1 was resistant to these races. Inheritance of resistance to blast and linkage relationships between blast resistance and the characters were studied in the F₂ populations. The resistance of the rice cultivar IR1905-81-3-1 to blast fungus races IB-47 and II-1 was controlled by one dominant gene each, and the resistance to race IH-1 by two dominant genes. No linkage relationships were found between the resistance of IR1905-81-3-1 to race IB-47 and the characters waxiness, chromogen, dripping-wet (lack of wax on leaf surface), ligulelessness, laziness, brittle culm (lack of α-cellulose in cell wall), glabrousness, and long hairiness on leaf surface. There were no linkages between the resistance to race IH-1 and waxiness, chromogen, ligulelessness, brittle culm. and glaborusness, and between the resistance to race II-1 and chromogen, dripping-wet, and brittle culm. However, loose linkage relationship was found between the resistance of IR1905-81-3-1 to the blast race IH-1 and laziness.
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Inheritance of blast resistance in certain semi-dwarf rice breeding lines
Mun Hue Heu(許文會),Hak Soo Suh(徐學洙),에푸 엘 누쿠(F.L. Nuque) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
The blast resistant semi-dwarf rice breeding lines IR1905-81-3-1, IR9669-PP8361-1, IR5533-PP854-1 and IR3273-289-2-1473 were crossed to a susceptible cultivar 55061. The four resistant parents were crossed diallelly for testing allelism relations of resistance to blast. The F₂ populations of the above crosses and two hundred F₃ lines of the cross 55061/IR1905-81-3-1 were screened against the races of Pyricularia oryzae IA-61, IB-47, IC-27, IH-1 and II-1. The blast resistant rice line IR1905-81-3-1 appeared to convey three dominant resistance genes, and IR9669-PP836-1, IR5533-PP8541 and IR3273-289-21473 to carry two or more dominant resistance genes respectively. The four resistant lines tested were proved to carry at least one common resistance gene.
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Inheritance of blast resistance in three Indica rice cultivars
Hak Soo Suh(徐學洙),Mun Hue Heu(許文會),에푸 엘 누쿠(F.L. Nuque) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
Three Indica rice cultivars Tetep, Ta-Poo-Cho-Z and Pankhari 203, which were resistant to the blast fungus Pyricularia oryzae, were crossed to a susceptible Korean rice cultivar Tongil. The resistant Indica rice cultivars were crossed each other for allelism test. The F₂s were screened against four races IA-61, IB-47, IC-27 and IH-1. Inheritance pattern, relationships between reactions to different races in the same F₂ plants, and allelism relationships were studied. The rice cultivar Tetep was found to convey three dominant resistance genes, Ta-Poo-Cho-Z one dominant and one recessive resistance genes, and Pankhari 203 one dominant resistance gene against those fungus races tested. The resistance gene of Pankhari 203 was common to one of the three resistance genes of Tetep. Thus, five reistance genes to blast fungus were found; three dominant genes from Tetep, one dominant and one recessive genes from Ta-Poo-Cho-Z.
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