Evaluation of a short-day adapted tetraploid potato population with horizontal resistance to Phytophthora infestans under long-day conditions in northern Maine

Kathleen G. Haynes, Robert W. Goth, David H. Lambert, Barbara Jane Christ

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Phytophthora infestans (Mont.) de Bary, the cause of late blight, has rapidly overcome major (R) gene resistance in potatoes. A population of short-day adapted tetraploid potatoes with horizontal resistance to late blight was developed at the International Potato Center in Lima, Peru. True seed from this population was obtained from the NRSP-6 Project at Sturgeon Bay, WI for the purpose of evaluating its potential to contribute to the breeding effort for late blight resistance in the United States. In 1996, 552 single hills were planted on Chapman Farm, Presque Isle, ME; only 448 tuberized. In 1997, these clones were planted on Chapman Farm for increase; 129 were saved, 53 failed to tuberize, and 266 were discarded because they were sprouted at harvest. In 1998 and 1999, 69 clones were tested for their reaction to late blight in replicated plots on Aroostook Farm, Presque Isle, ME. Percent infected foliage was estimated three times toward the end of the season and used to compute area under the disease progress curve. Broad-sense heritability for horizontal resistance to late blight was estimated as 0.78 with a 95% confidence interval of 0.64 to 0.86. Using detached leaflet assays, these clones were inoculated with US-8 strains of P. infestans, and the diameter of the lesion was measured 7, 8, 9, 10 and 11 days after inoculation. The correlation between field resistance and the detached leaflet assay was very low (0.18<r<0.24). Some clones from this population are highly resistant to the US-8 strain of P. infestans and represent another source of breeding material for developing late blight resistant varieties in the future. However, very late maturity, short dormancy, poor tuberization and low fertility levels may limit the usefulness of this germplasm in northern USA latitudes.

Original languageEnglish (US)
Pages (from-to)459-466
Number of pages8
JournalAmerican Journal of Potato Research
Volume84
Issue number6
DOIs
StatePublished - Jan 1 2007

Fingerprint

horizontal resistance
Phytophthora infestans
tetraploidy
potatoes
clones
farms
true seeds
lesions (plant)
breeding
sturgeon
assays
Peru
dormancy
confidence interval
germplasm
heritability

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

@article{4225359592874f289254f568cca85a71,
title = "Evaluation of a short-day adapted tetraploid potato population with horizontal resistance to Phytophthora infestans under long-day conditions in northern Maine",
abstract = "Phytophthora infestans (Mont.) de Bary, the cause of late blight, has rapidly overcome major (R) gene resistance in potatoes. A population of short-day adapted tetraploid potatoes with horizontal resistance to late blight was developed at the International Potato Center in Lima, Peru. True seed from this population was obtained from the NRSP-6 Project at Sturgeon Bay, WI for the purpose of evaluating its potential to contribute to the breeding effort for late blight resistance in the United States. In 1996, 552 single hills were planted on Chapman Farm, Presque Isle, ME; only 448 tuberized. In 1997, these clones were planted on Chapman Farm for increase; 129 were saved, 53 failed to tuberize, and 266 were discarded because they were sprouted at harvest. In 1998 and 1999, 69 clones were tested for their reaction to late blight in replicated plots on Aroostook Farm, Presque Isle, ME. Percent infected foliage was estimated three times toward the end of the season and used to compute area under the disease progress curve. Broad-sense heritability for horizontal resistance to late blight was estimated as 0.78 with a 95{\%} confidence interval of 0.64 to 0.86. Using detached leaflet assays, these clones were inoculated with US-8 strains of P. infestans, and the diameter of the lesion was measured 7, 8, 9, 10 and 11 days after inoculation. The correlation between field resistance and the detached leaflet assay was very low (0.18",
author = "Haynes, {Kathleen G.} and Goth, {Robert W.} and Lambert, {David H.} and Christ, {Barbara Jane}",
year = "2007",
month = "1",
day = "1",
doi = "10.1007/BF02987882",
language = "English (US)",
volume = "84",
pages = "459--466",
journal = "American Journal of Potato Research",
issn = "1099-209X",
publisher = "Potato Association of America",
number = "6",

}

Evaluation of a short-day adapted tetraploid potato population with horizontal resistance to Phytophthora infestans under long-day conditions in northern Maine. / Haynes, Kathleen G.; Goth, Robert W.; Lambert, David H.; Christ, Barbara Jane.

In: American Journal of Potato Research, Vol. 84, No. 6, 01.01.2007, p. 459-466.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation of a short-day adapted tetraploid potato population with horizontal resistance to Phytophthora infestans under long-day conditions in northern Maine

AU - Haynes, Kathleen G.

AU - Goth, Robert W.

AU - Lambert, David H.

AU - Christ, Barbara Jane

PY - 2007/1/1

Y1 - 2007/1/1

N2 - Phytophthora infestans (Mont.) de Bary, the cause of late blight, has rapidly overcome major (R) gene resistance in potatoes. A population of short-day adapted tetraploid potatoes with horizontal resistance to late blight was developed at the International Potato Center in Lima, Peru. True seed from this population was obtained from the NRSP-6 Project at Sturgeon Bay, WI for the purpose of evaluating its potential to contribute to the breeding effort for late blight resistance in the United States. In 1996, 552 single hills were planted on Chapman Farm, Presque Isle, ME; only 448 tuberized. In 1997, these clones were planted on Chapman Farm for increase; 129 were saved, 53 failed to tuberize, and 266 were discarded because they were sprouted at harvest. In 1998 and 1999, 69 clones were tested for their reaction to late blight in replicated plots on Aroostook Farm, Presque Isle, ME. Percent infected foliage was estimated three times toward the end of the season and used to compute area under the disease progress curve. Broad-sense heritability for horizontal resistance to late blight was estimated as 0.78 with a 95% confidence interval of 0.64 to 0.86. Using detached leaflet assays, these clones were inoculated with US-8 strains of P. infestans, and the diameter of the lesion was measured 7, 8, 9, 10 and 11 days after inoculation. The correlation between field resistance and the detached leaflet assay was very low (0.18

AB - Phytophthora infestans (Mont.) de Bary, the cause of late blight, has rapidly overcome major (R) gene resistance in potatoes. A population of short-day adapted tetraploid potatoes with horizontal resistance to late blight was developed at the International Potato Center in Lima, Peru. True seed from this population was obtained from the NRSP-6 Project at Sturgeon Bay, WI for the purpose of evaluating its potential to contribute to the breeding effort for late blight resistance in the United States. In 1996, 552 single hills were planted on Chapman Farm, Presque Isle, ME; only 448 tuberized. In 1997, these clones were planted on Chapman Farm for increase; 129 were saved, 53 failed to tuberize, and 266 were discarded because they were sprouted at harvest. In 1998 and 1999, 69 clones were tested for their reaction to late blight in replicated plots on Aroostook Farm, Presque Isle, ME. Percent infected foliage was estimated three times toward the end of the season and used to compute area under the disease progress curve. Broad-sense heritability for horizontal resistance to late blight was estimated as 0.78 with a 95% confidence interval of 0.64 to 0.86. Using detached leaflet assays, these clones were inoculated with US-8 strains of P. infestans, and the diameter of the lesion was measured 7, 8, 9, 10 and 11 days after inoculation. The correlation between field resistance and the detached leaflet assay was very low (0.18

UR - http://www.scopus.com/inward/record.url?scp=38849143971&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38849143971&partnerID=8YFLogxK

U2 - 10.1007/BF02987882

DO - 10.1007/BF02987882

M3 - Article

AN - SCOPUS:38849143971

VL - 84

SP - 459

EP - 466

JO - American Journal of Potato Research

JF - American Journal of Potato Research

SN - 1099-209X

IS - 6

ER -