Putative Alleles for Increased Yield from Soybean Plant Introductions

Crop Science ◽  
2004 ◽  
Vol 44 (3) ◽  
pp. 784 ◽  
Author(s):  
E. A. Kabelka ◽  
B. W. Diers ◽  
W. R. Fehr ◽  
A. R. LeRoy ◽  
I. C. Baianu ◽  
...  
Keyword(s):  
Soybean Plant ◽  
Plant Introductions

scholarly journals Two Soybean Plant Introductions Display Slow Leaf Wilting and Reduced Yield Loss under Drought

2014 ◽  
Vol 200 (3) ◽  
pp. 231-236 ◽  
Author(s):  
S. M. Pathan ◽  
J.-D. Lee ◽  
D. A. Sleper ◽  
F. B. Fritschi ◽  
R. E. Sharp ◽  
...  
Keyword(s):  
Yield Loss ◽  
Soybean Plant ◽  
Plant Introductions

Putative Alleles for Increased Yield from Soybean Plant Introductions

Crop Science ◽  
2004 ◽  
Vol 44 (3) ◽  
pp. 784-791 ◽  
Author(s):  
E. A. Kabelka ◽  
B. W. Diers ◽  
W. R. Fehr ◽  
A. R. LeRoy ◽  
I. C. Baianu ◽  
...  
Keyword(s):  
Soybean Plant ◽  
Plant Introductions

scholarly journals Similarities in Seed and Aphid Transmission Among Soybean mosaic virus Isolates

Plant Disease ◽  
2007 ◽  
Vol 91 (5) ◽  
pp. 546-550 ◽  
Author(s):  
Leslie L. Domier ◽  
Todd A. Steinlage ◽  
Houston A. Hobbs ◽  
Yi Wang ◽  
Gabriel Herrera-Rodriguez ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Field Experiments ◽  
Soybean Mosaic Virus ◽  
Aphid Transmission ◽  
Amino Acid Sequences ◽  
Mechanical Transmission ◽  
Soybean Plant ◽  
Loss Of Function ◽  
Strain Specificity ◽  
Plant Introductions

Soybean mosaic virus (SMV) is an aphid- and seed-transmitted virus that infects soybean (Glycine max) plants and causes significant yield losses. Seed-borne infections are the primary sources of inoculum for SMV infections. The strain specificity of SMV transmission through seed and SMV-induced seed-coat mottling were investigated in field experiments. Six soybean plant introductions (PIs) were inoculated with eight SMV strains and isolates. Transmission of SMV through seed ranged from 0 to 43%, and isolate-by-soybean line interactions occurred in both transmission rates and percentages of mottled seeds. For example, SMV 746 was transmitted through 43% of seed in PI 229324, but was not transmitted through seed of PIs 68522, 68671, or 86449. In contrast, SMV 413 was transmitted through seed from all PIs. SMVs that were transmitted poorly by the Asian soybean aphid, Aphis glycines, also were transmitted poorly through seed. No predicted amino acid sequences within the helper-component protease or coat protein coding regions differentiated the two groups of SMV strains. The loss of aphid and seed transmissibility by repeated mechanical transmission suggests that constant selection pressure is needed to maintain the regions of the SMV genome controlling the two phenotypes from genetic drift and loss of function.

Genetic Relationships among Soybean Plant Introductions with Resistance to Soybean Cyst Nematodes

Crop Science ◽  
1997 ◽  
Vol 37 (6) ◽  
pp. 1966-1972 ◽  
Author(s):  
B. W. Diers ◽  
H. T. Skorupska ◽  
A. P. Rao‐Arelli ◽  
S. R. Cianzio
Keyword(s):  
Genetic Relationships ◽  
Soybean Plant ◽  
Cyst Nematodes ◽  
Plant Introductions ◽  
Soybean Cyst Nematodes

scholarly journals Reaction of Selected Soybean Genotypes to Isolates of Fusarium solani f. sp. glycines and Their Culture Filtrates

Plant Disease ◽  
1998 ◽  
Vol 82 (9) ◽  
pp. 999-1002 ◽  
Author(s):  
Y. H. Huang ◽  
G. L. Hartman
Keyword(s):  
Great Lakes ◽  
Disease Severity ◽  
Culture Filtrate ◽  
Fusarium Solani ◽  
Stem Length ◽  
Soybean Plant ◽  
Foliar Disease ◽  
Plant Introductions ◽  
Disease Progress ◽  
Progress Curve

Four soybean plant introductions, PI 520.733, PI 567.374, PI 567.650B, and PI 567.659, and one soybean cultivar, Great Lakes 3202, were inoculated under greenhouse conditions with four isolates of Fusarium solani f. sp. glycines. Foliar disease severity rating was greatest on PI 567.659, followed by Great Lakes 3202, PI 520.733, PI 567.650B, and PI 567.374. There was no significant interaction between isolates and soybean entries for foliar disease severity ratings. Experiments also were conducted to determine if disease development and root colonization differed among entries. Root infection of the five entries did not differ (P = 0.05). Foliar disease progress curves increased faster for PI 567.659 and Great Lakes 3202 than for PI 567.374. The area under the disease progress curve (AUDPC) value for PI 567.374 was the lowest and differed (P = 0.01) from AUDPC values for Great Lakes 3202 and PI 567.659. There were no differences (P = 0.01) in length of taproot lesions, losses in root dry weight, and vascular stem length discoloration among the entries, and there was no correlation (P = 0.05) between these measurements and foliar AUDPC values. Cut seedling stems immersed in culture filtrate developed interveinal chlorosis on leaves of each entry within 2 days. Disease severity on cut seedlings of PI 567.374 was lower (P = 0.01) than on the other entries. There was a positive correlation (r = 0.94, P = 0.05) between AUDPC values of the five entries inoculated with the fungus and the cut seedling test using culture filtrate.

scholarly journals Predicted genetic gains from introgressing chromosome segments from exotic germplasm into an elite soybean cultivar

2019 ◽  
Author(s):  
Sushan Ru ◽  
Rex Bernardo
Keyword(s):  
Soybean Plant ◽  
Exotic Germplasm ◽  
Specific Chromosome ◽  
Plant Introductions ◽  
Genetic Gains ◽  
Soybean Germplasm ◽  
Trait Locus ◽  
Cultivated Soybean ◽  
Elite Cultivar ◽  
Chromosome Segments

AbstractBroadening the diversity of cultivated soybean [Glycine max (L.) Merrill] through introgression of exotic germplasm has been difficult. Our objectives were to 1) determine if introgressing specific chromosome segments (instead of quantitative trait locus alleles) from exotic soybean germplasm has potential for improving an elite cultivar, and 2) identify strategies to introgress and pyramid exotic chromosome segments into an elite cultivar. We estimated genomewide marker effects for yield and other traits in seven crosses between the elite line IA3023 and seven soybean plant introductions (PIs). We then predicted genetic gains from having ≤2 targeted recombinations per linkage group. When introgression was modeled for yield while controlling maturity in the seven PI × IA3023 populations, the predicted yield was 8 to 25% over the yield of IA3023. Correlated changes in maturity, seed traits, lodging, and plant height were generally small but were in the favorable direction. In contrast, selecting the best recombinant inbred (without targeted recombination) in each of the PI × IA3023 populations led to negative or minimal yield gains over IA3023. In one PI × IA3023 population, introgressing and pyramiding only two linkage groups from recombinant inbreds into IA3023 was predicted to achieve an 8% yield gain over IA3023 without sacrificing the performance of other traits. The probability of inheriting intact chromosomes was high enough to allow introgression and pyramiding of chromosome segments in 5-6 generations. Overall, our study suggested that introgressing specific chromosome segments is an effective way to introduce exotic soybean germplasm into an elite cultivar.Key messageTo improve an elite soybean line, introgress longer chromosome segments instead of QTL alleles from exotic germplasm.

Three Soybean Plant Introductions Possess Unique Resistance to Peanut Root-Knot Nematode

Crop Science ◽  
2010 ◽  
Vol 50 (1) ◽  
pp. 118-122 ◽  
Author(s):  
Jennifer L. Yates ◽  
Richard S. Hussey ◽  
Steven L. Finnerty ◽  
H. Roger Boerma
Keyword(s):  
Soybean Plant ◽  
Root Knot Nematode ◽  
Plant Introductions
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