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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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Phytophthora root rot attributable to infection by the soil-borne oomycete Phytophthora sojae causes serious damage to susceptiblesoybeans grown in poorly drained soil. Management of this disease depends primarily on Rps (resistance to P. sojae) resistance genes. Theobjective of this study was to map resistance to two P. sojae isolates (40412 and 2457) in a Daepung × Socheong2 recombinant inbred linepopulation. Of these two varieties, Socheong2 is resistant to the two isolates, whereas Daepung is susceptible. Single-marker analysis of varianceand linkage analyses using a high-density genetic map identified different resistance loci for each isolate. A genomic region of 36.2~37.4Mbp on chromosome 3 was identified as being associated with resistance to isolate 40412, explaining 18% of the phenotypic variance (PV),whereas, a 2.1~2.6-Mbp region on chromosome 18 was significantly associated with resistance to isolate 2457, accounting for approximately26% of the PV. An additional region of 53.1~53.3 Mbp on chromosome 18 was also significantly associated with resistance to isolate 2457. All three loci coincide with genomic regions where an Rps gene or partial resistance have been mapped in previous studies. The respectivelocus showed significance for only one or the other of the isolates, indicating an isolate-specific interaction. From this finding, it can beinferred that isolates 40412 and 2457 are characterized by different avirulence genes, and that Socheong2 has at least two Rps genes thatinteract with each isolate. The finding of multiple Rps loci specific to an isolate within a single soybean genotype is a unique discovery. Socheong2 will accordingly be a useful genetic source for breeding resistance to multiple P. sojae isolates.
목차
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참고문헌 (48)
참고문헌 신청
Abeysekara NS / 2016 / Novel sources of partial resistance against Phytophthora sojae in soybean PI 399036 / Crop Sci 56:2322~2335
Hajime Akamatsu / 2019 / Variation in the Resistance of Japanese Soybean Cultivars to Phytophthora Root and Stem Rot during the Early Plant Growth Stages and the Effects of a Fungicide Seed Treatment / The Plant Pathology Journal 35(3):219~233
Allen TW / 2017 / Soybean yield loss estimates due to diseases in the United States and Ontario, Canada, from 2010 to 2014 / Plant Heal Prog 18:19~27
Bates D / 2015 / Fitting linear mixed-effects models using lme4 / J Stat Softw 67:1~48
Bradley CA / 2008 / Effect of fungicide seed treatments on stand establishment, seedling disease, and yield of soybean in North Dakota / Plant Dis 92:120~125
Hajime Akamatsu / 2019 / Variation in the Resistance of Japanese Soybean Cultivars to Phytophthora Root and Stem Rot during the Early Plant Growth Stages and the Effects of a Fungicide Seed Treatment / The Plant Pathology Journal 35(3):219~233
Allen TW / 2017 / Soybean yield loss estimates due to diseases in the United States and Ontario, Canada, from 2010 to 2014 / Plant Heal Prog 18:19~27
Bates D / 2015 / Fitting linear mixed-effects models using lme4 / J Stat Softw 67:1~48
Bradley CA / 2008 / Effect of fungicide seed treatments on stand establishment, seedling disease, and yield of soybean in North Dakota / Plant Dis 92:120~125
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