TY - JOUR
T1 - Identification of genomic loci conferring broad-spectrum resistance to multiple nematode species in exotic soybean accession PI 567305
AU - Vuong, T. D.
AU - Sonah, H.
AU - Patil, G.
AU - Meinhardt, C.
AU - Usovsky, M.
AU - Kim, K. S.
AU - Belzile, F.
AU - Li, Z.
AU - Robbins, R.
AU - Shannon, J. G.
AU - Nguyen, H. T.
N1 - Funding Information:
This research was partially funded by the United States Department of Agriculture?National Institute of Food and Agriculture (USDA-NIFA) grant 2019-67013-29370?and the USDA-NIFA Hatch/Multistate grant MO-MSPS0002. The authors would like to thank undergraduate students for their technical assistance in field and laboratory work.
Funding Information:
This research was partially funded by the United States Department of Agriculture—National Institute of Food and Agriculture (USDA-NIFA) grant 2019-67013-29370—and the USDA-NIFA Hatch/Multistate grant MO-MSPS0002. The authors would like to thank undergraduate students for their technical assistance in field and laboratory work.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021/10
Y1 - 2021/10
N2 - Key Message: Genetic analysis identified a unique combination of major QTL for resistance to important soybean nematodes concurrently present in a single soybean accession, which has not been reported earlier. Abstract: An exotic soybean [Glycine max (L.) Merr.] accession, PI 567305, was reported to be highly resistant to three important nematode species, soybean cyst (SCN), root-knot (RKN), and reniform (RN) nematodes. However, genetic basis controlling broad-spectrum resistance in this germplasm has not been investigated. We report results of genetic analysis to identify genomic loci conferring resistance to these nematode species. A bi-parental population consisting of 242 F8-derived recombinant inbred lines (RILs) was developed from a cross of a nematode susceptible cultivar, Magellan, and resistant accession, PI 567305. The RILs were phenotyped for nematode resistance to three SCN HG types. They were genotyped using the Infinium SoySNP6K BeadChips and genotype-by-sequencing (GBS) methods in an attempt to evaluate the cost-effectiveness and efficiency of these two genotyping platforms. Genetic analysis confirmed the major QTL on chromosomes (Chrs) 10 and 18 with broad-spectrum resistance to the three nematodes present in this germplasm. Haplotype and copy number variation analyses of SCN resistance QTL indicated that PI 567305 has a different haplotype, which is associated with likely a unique SCN resistance mechanism different from Peking- or PI 88788-type resistance. The evaluations of both Infinium Beadchip- and GBS-based genotyping technologies provided comprehensive insights for researchers to choose a cost-effective and efficient platform for QTL mapping and for other genomic studies in soybeans.
AB - Key Message: Genetic analysis identified a unique combination of major QTL for resistance to important soybean nematodes concurrently present in a single soybean accession, which has not been reported earlier. Abstract: An exotic soybean [Glycine max (L.) Merr.] accession, PI 567305, was reported to be highly resistant to three important nematode species, soybean cyst (SCN), root-knot (RKN), and reniform (RN) nematodes. However, genetic basis controlling broad-spectrum resistance in this germplasm has not been investigated. We report results of genetic analysis to identify genomic loci conferring resistance to these nematode species. A bi-parental population consisting of 242 F8-derived recombinant inbred lines (RILs) was developed from a cross of a nematode susceptible cultivar, Magellan, and resistant accession, PI 567305. The RILs were phenotyped for nematode resistance to three SCN HG types. They were genotyped using the Infinium SoySNP6K BeadChips and genotype-by-sequencing (GBS) methods in an attempt to evaluate the cost-effectiveness and efficiency of these two genotyping platforms. Genetic analysis confirmed the major QTL on chromosomes (Chrs) 10 and 18 with broad-spectrum resistance to the three nematodes present in this germplasm. Haplotype and copy number variation analyses of SCN resistance QTL indicated that PI 567305 has a different haplotype, which is associated with likely a unique SCN resistance mechanism different from Peking- or PI 88788-type resistance. The evaluations of both Infinium Beadchip- and GBS-based genotyping technologies provided comprehensive insights for researchers to choose a cost-effective and efficient platform for QTL mapping and for other genomic studies in soybeans.
UR - http://www.scopus.com/inward/record.url?scp=85111088007&partnerID=8YFLogxK
U2 - 10.1007/s00122-021-03903-1
DO - 10.1007/s00122-021-03903-1
M3 - Article
C2 - 34297174
AN - SCOPUS:85111088007
VL - 134
SP - 3379
EP - 3395
JO - Theoretical and Applied Genetics
JF - Theoretical and Applied Genetics
SN - 0040-5752
IS - 10
ER -