Resistance to soybean cyst nematode and molecular polymorphism in various sources of Peking soybean

Skorupska, H.; Choi, Insoo; Rao-Arelli, A. P.; Bridges, William C.

doi:10.1007/bf00024532

Cited by 22 publications

(8 citation statements)

References 20 publications

(15 reference statements)

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“…First, it is likely that each researcher used a different source of Peking. There exist a number of lines named Peking, but they vary in SCN resistance responses and genetic marker analysis has shown that they are genetically diverse (Skorupska et al, 1994). Another explanation is that these groups (Mahalingam and Skorupska, 1995; Qiu et al, 1999; Concibido et al, 1997), except for Meksem et al (2001), did not have complete genome coverage with their markers, which may have caused some groups to miss QTL detected by others.…”

Section: Qtl Mapping Inconsistenciesmentioning

confidence: 99%

A Decade of QTL Mapping for Cyst Nematode Resistance in Soybean

2004

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example, Rao-Arelli et al. (1992b) showed that several isolates of H. glycines were initially classified as one Soybean cyst nematode (SCN) (Heterodera glycines Ichinohe), race by this scheme. However, when later tested with the most destructive pest of soybean [Glycine max (L.) Merrill], is estimated to be responsible for almost nine million megagrams in resistant genotypes other than the standard differentials, annual yield loss worldwide. Host plant resistance is the most costthe isolates behaved as different races. To describe dieffective and environmentally friendly method of controlling SCN. P.R. Arelli, USDA-ARS, 605 Airways Blvd., Jackson, TN 38301.

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Section: Qtl Mapping Inconsistenciesmentioning

confidence: 99%

A Decade of QTL Mapping for Cyst Nematode Resistance in Soybean

2004

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“…There are very few different sources for soybean cyst nematode resistance genes and their alleles in the U.S. soybean crop (PI 88788, PI 437.654, Peking, PI90763 and PI209332). More than 85% of SCN-resistant cultivars are derived from PI88788 due to superior agronomic performance (Skorupska et al 1994). DNA marker analysis has shown that resistance to SCN was quantitative when derived from PI437654 (Webb et al 1995;Vierling et al 1997;Prabhu et al 1999), Peking (Mahalingam and Skorupska 1995;Chang et al 1997), PI88788 (Concibidio et al 1997;Matthews et al 1998), PI90763 and PI209332 (Concibidio et al 1996.…”

Section: Introductionmentioning

confidence: 99%

’Forrest’ resistance to the soybean cyst nematode is bigenic: saturation mapping of the Rhg1and Rhg4 loci

Meksem¹,

Pantazopoulos²,

Njiti³

et al. 2001

Theor Appl Genet

159

163

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Field resistance to cyst nematode (SCN) race 3 (Heterodera glycines I.) in soybean [Glycine max (L.) Merr.] cv 'Forrest' is conditioned by two QTLs: the underlying genes are presumed to include Rhg1 on linkage group G and Rhg4 on linkage group A2. A population of recombinant inbred lines (RILs) and two populations of near-isogenic lines (NILs) derived from a cross of Forrest × Essex were used to map the loci affecting resistance to SCN. Bulked segregant analysis, with 512 AFLP primer combinations and microsatellite markers, produced a high-density genetic map for the intervals carrying Rhg1 and Rhg4. The two QTLs involved in resistance to SCN were strongly associated with the AFLP marker EATGMCGA87 (P = 0.0001, R 2 = 24.5%) on linkage group G, and the AFLP marker ECCGMAAC405 (P = 0.0001, R 2 = 26.2%) on linkage group A2. Two-way analysis of variance showed epistasic interaction (P = 0.0001, R 2 =16%) between the two loci controlling SCN resistance in Essex × Forrest recombinant inbred lines. Considering the two loci as qualitative genes and the resistance as female index FI < 5%, jointly the two loci explained over 98% of the resistance. The locations of the two QTLs were confirmed in the NILs populations. Therefore SCN resistance in Forrest × Essex is bigenic. High-efficiency marker-assisted selection can be performed using the markers to develop cultivars with stable resistance to SCN.

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“…Of 130 SCN resistant cultivars released in the USA, most (>95%) have resistant alleles derived from a plant introduction PI 88788 due to favorable agronomic performance (Skorupska et al 1994). Inheritance of SCN resistance was first reported in a cultivar called Peking, and three recessive genes (rhg1, rhg2, rhg3) were assigned (Caldwell et al 1960).…”

Section: Idh2 Fasmentioning

confidence: 99%