scholarly journals Detection of rare nematode resistance Rhg1 haplotypes in Glycine soja and a novel Rhg1 α‐SNAP

2021 ◽  
Author(s):  
Derrick J. Grunwald ◽  
Ryan W. Zapotocny ◽  
Seda Ozer ◽  
Brian W. Diers ◽  
Andrew F. Bent
Keyword(s):  
Glycine Soja ◽  
Nematode Resistance

Registration of LDX01‐1‐65 Soybean Germplasm with Soybean Cyst Nematode Resistance Derived from Glycine soja

Crop Science ◽  
2005 ◽  
Vol 45 (4) ◽  
pp. 1671-1672 ◽  
Author(s):  
B.W. Diers ◽  
P.R. Arelli ◽  
S.R. Carlson ◽  
W.R. Fehr ◽  
E.A. Kabelka ◽  
...  
Keyword(s):  
Soybean Cyst Nematode ◽  
Glycine Soja ◽  
Nematode Resistance ◽  
Cyst Nematode ◽  
Soybean Germplasm ◽  
Soybean Cyst Nematode Resistance

Breeding and usage of sugar beet cultivars and hybrids resistant to sugar beet nematode Heterodera schachtii

2015 ◽  
Vol 2 (1) ◽  
pp. 12-22 ◽  
Author(s):  
L. Pylypenko ◽  
K. Kalatur
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Production Capacity ◽  
Nematode Resistance ◽  
Control Measures ◽  
Heterodera Schachtii ◽  
Yield Reduction ◽  
Agricultural Practice ◽  
Germplasm Exchange ◽  
Good Agricultural Practice

Heterodera schachtii Schmidt, 1871 is one of the most economically important pests of sugar beet (Beta vulgaris L.) worldwide. It is also widespread in most sugar beet growing regions in Ukraine causing serious yield reduction and decreasing sugar content of sugar beet in infested fi elds. An advanced parasitic strategy of H. schachtii is employed to support nematode growth, reproduction and harmfulness. In intensive agriculture systems the nematode control measures heavily rely on nematicides and good agricultural practice (crop rota- tion in the fi rst place). But alternative strategies based on nematode resistant sugar beet cultivars and hybrids are required as none of nematicides approved for the open fi eld application are registered in Ukraine. Here we review the achievements and problems of breeding process for H. schachtii resistance and provide the results of national traditional breeding program. Since the beginning of 1980s fi ve sugar beet cultivars (Verchnyatskyi 103, Yaltuschkivska 30, Bilotcerkivska 45, BTs-40 and Yuvileynyi) and seventeen lines partly resistant or toler- ant to H. schachtii have been obtained throughout targeted crossing and progenies assessment in the infested fi elds. The further directions for better utilization of genetic sources for nematode resistance presented in na- tional gene bank collection are emphasized. There is a need for more accurate identifi cation of resistance genes, broader application of reliable molecular markers (suitable for marker-assisted selection of nematode resistant plants in the breeding process) and methods for genetic transformation of plants. Crop cash value and national production capacity should drive the cooperation in this fi eld. Knowledge as well as germplasm exchange are thereby welcomed that can benefi t breeding progress at national and international level.

Identification of novel haplotype of a cyst nematode resistance gene, GmSNAP18 in soybean [Glycine max (L.) Merr.]

2020 ◽  
Vol 80 (03) ◽  
Author(s):  
Ik-Young Choi ◽  
Prakash Basnet ◽  
Hana Yoo ◽  
Neha Samir Roy ◽  
Rahul Vasudeo Ramekar ◽  
...  
Keyword(s):  
Soybean Cyst Nematode ◽  
Gene Families ◽  
Nematode Resistance ◽  
Cyst Nematode ◽  
Soybean Breeding ◽  
Resistant Varieties ◽  
Soybean Genotypes ◽  
Glycine Max L ◽  
Scn Resistance

Soybean cyst nematode (SCN) is one of the most damaging pest of soybean. Discovery and characterization of the genes involved in SCN resistance are important in soybean breeding. Soluble NSF attachment protein (SNAP) genes are related to SCN resistance in soybean. SNAP genes include five gene families, and 2 haplotypes of exons 6 and 9 of SNAP18 are considered resistant to the SCN. In present study the haplotypes of GmSNAP18 were surveyed and chacterized in a total of 60 diverse soybean genotypes including Korean cultivars, landraces, and wild-types. The target region of exons 6 and 9 in GmSNAP18 region was amplified and sequenced to examine nucleotide variation. Characterization of 5 haplotypes identified in present study for the GmSNAP18 gene revealed two haplotypes as resistant, 1 as susceptible and two as novel. A total of twelve genotypes showed resistant haplotypes, and 45 cultivars were found susceptible. Interestingly, the two novel haplotypes were present in 3 soybean lines. The information provided here about the haplotypic variation of GmSNAP18 gene can be further explored for soybean breeding to develop resistant varieties.

Lesion Nematode Resistance in Peanuts 1

Crop Science ◽  
1978 ◽  
Vol 18 (6) ◽  
pp. 1008-1011 ◽  
Author(s):  
O. D. Smith ◽  
T. E. Boswell ◽  
W. H. Thames
Keyword(s):  
Nematode Resistance ◽  
Lesion Nematode
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