Resistance to Meloidogyne chitwoodi Identified in Wild Potato Species

被引:3
|
作者
Graebner, Ryan C. [1 ,2 ]
Brown, Charles R. [3 ]
Ingham, Russell E. [4 ]
Hagerty, Christina H. [5 ]
Mojtahedi, Hassan [6 ]
Quick, Richard A. [3 ]
Hamlin, Launa L. [6 ]
Wade, Nadine [4 ]
Bamberg, John B. [7 ]
Sathuvalli, Vidyasagar [1 ,2 ]
机构
[1] Oregon State Univ, Hermiston Agr Res & Extens Ctr, Hermiston, OR 97838 USA
[2] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA
[3] USDA ARS, Temperate Tree Fruit & Vegetable Res Unit, Prosser, WA 99350 USA
[4] Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 USA
[5] Oregon State Univ, Columbia Basin Agr Res Ctr, Adams, OR 97810 USA
[6] Washington State Univ, Irrigated Agr Res & Extens Ctr, Prosser, WA 99350 USA
[7] USDA ARS, US Potato Genebank, Sturgeon Bay, WI 54235 USA
关键词
Crop wild relatives; germplasm screening; root-knot nematode; Solanum; hougasii; bulbocastanum; stenophyllidium; ROOT-KNOT NEMATODE; TUBER-BEARING SOLANUM; CULTIVATED POTATO; REPRODUCTIVE EFFICIENCY; INTROGRESSED RESISTANCE; BREEDING LINES; HAPLA; HOUGASII; TESTS; GENE;
D O I
10.1007/s12230-018-9674-9
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Meloidogyne chitwoodi (Columbia root-knot nematode, CRKN) can cause serious damage in potato production systems, decreasing tuber value in the fresh market and processing industries. Genetic resistance to CRKN was first identified from the wild diploid potato species Solanum bulbocastanum accession SB22 and was successfully introgressed into tetraploid potato breeding material. To expand the base of genetic resistance, 40 plant accessions representing nine wild potato species were screened for their resistance to M. chitwoodi. Greenhouse screening identified fifteen clones from S. hougasii, one clone from S. bulbocastanum, and one clone from S. stenophyllidium with moderate to high levels of resistance against three isolates of M. chitwoodi. Geographical mapping showed that the resistance sources identified in this and previous studies primarilyoriginated in the states of Jalisco and Michoacan in west-central Mexico. These new sources of resistance will be introgressed into elite potato populations to facilitate the development of potato cultivars with durable resistance to M. chitwoodi. ResumenMeloidogyne chitwoodi (nematodo agallador de Columbia, CRKN por sus siglas en ingles), puede causar dano serio en los sistemas de produccion de papa, disminuyendo el valor del tuberculo en el mercado fresco y en las industrias del procesamiento. La resistencia genetica al CRKN se identifico primero en la especie silvestre diploide de papa Solanum bulbocastanum, accesion SB22, y fue introducida con exito en material tetraploide de mejoramiento de papa. Con el fin de expandir la base de resistencia genetica, se probaron 40 plantas de las accesiones, representando nueve especies silvestres de papa, para su resistencia a M. chitwoodi. En las pruebas de invernadero se identificaron 15 clones de S. hougasii, uno de S. bulbocastanum, y uno de S. stenophyllidium, con niveles de moderados a altos de resistencia contra tres aislamientos de M. chitwoodi. El mapa geografico mostro que las fuentes de resistencia identificadas en este y en estudios previos, se originaron primeramente en los Estados de Jalisco y Michoacan, en el centro-occidente de Mexico. Estas nuevas fuentes seran introducidas a poblaciones elite de papa para permitir el desarrollo de variedades de papa con resistencia durable a M. chitwoodi.
引用
收藏
页码:679 / 686
页数:8
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