A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI

Late blight of potato, caused by Phytophthorainfestans, is one of the most economically important diseases worldwide, resulting in substantial yield losses when not adequately controlled by fungicides. Late blight was a contributory factor in The Great Irish Famine, and breeding for resistance to th...

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Main Authors:	Tomczyńska, Iga, Stefańczyk, Emil, Chmielarz, Marcin, Karasiewicz, Beata, Kamiński, Piotr, Jones, Jonathan D. G., Lees, Alison K., Śliwka, Jadwiga
Format:	Online
Language:	English
Published:	Springer Berlin Heidelberg 2013
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3931936/

id	pubmed-3931936
recordtype	oai_dc
spelling	pubmed-39319362014-02-28 A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI Tomczyńska, Iga Stefańczyk, Emil Chmielarz, Marcin Karasiewicz, Beata Kamiński, Piotr Jones, Jonathan D. G. Lees, Alison K. Śliwka, Jadwiga Original Paper Late blight of potato, caused by Phytophthorainfestans, is one of the most economically important diseases worldwide, resulting in substantial yield losses when not adequately controlled by fungicides. Late blight was a contributory factor in The Great Irish Famine, and breeding for resistance to the disease began soon after. Several disease-resistant cultivars have subsequently been obtained, and amongst them Sárpo Mira is currently one of the most effective. The aim of this work was to extend the knowledge about the genetic basis of the late blight resistance in Sárpo Mira and to identify molecular markers linked to the resistance locus which would be useful for marker-assisted selection. A tetraploid mapping population from a Sárpo Mira × Maris Piper cross was phenotyped for foliar late blight resistance using detached leaflet tests. A locus with strong effect on late blight resistance was mapped at the end of chromosome XI in the vicinity of the R3 locus. Sárpo Mira’s genetic map of chromosome XI contained 11 markers. Marker 45/XI exhibited the strongest linkage to the resistance locus and accounted for between 55.8 and 67.9 % of variance in the mean resistance scores noted in the detached leaflet assays. This marker was used in molecular marker-facilitated gene pyramiding. Ten breeding lines containing a late blight resistance locus from cultivar Sárpo Mira and the Rpi-phu1 gene originating from the late blight resistant accession of Solanumphureja were obtained. These lines have extended the spectrum of late blight resistance compared with Sárpo Mira and it is expected that resistance in plants containing this gene pyramid will have enhanced durability. Springer Berlin Heidelberg 2013-12-17 2014 /pmc/articles/PMC3931936/ /pubmed/24343200 http://dx.doi.org/10.1007/s00122-013-2248-9 Text en © The Author(s) 2013 Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Tomczyńska, Iga Stefańczyk, Emil Chmielarz, Marcin Karasiewicz, Beata Kamiński, Piotr Jones, Jonathan D. G. Lees, Alison K. Śliwka, Jadwiga
spellingShingle	Tomczyńska, Iga Stefańczyk, Emil Chmielarz, Marcin Karasiewicz, Beata Kamiński, Piotr Jones, Jonathan D. G. Lees, Alison K. Śliwka, Jadwiga A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
author_facet	Tomczyńska, Iga Stefańczyk, Emil Chmielarz, Marcin Karasiewicz, Beata Kamiński, Piotr Jones, Jonathan D. G. Lees, Alison K. Śliwka, Jadwiga
author_sort	Tomczyńska, Iga
title	A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
title_short	A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
title_full	A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
title_fullStr	A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
title_full_unstemmed	A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI
title_sort	locus conferring effective late blight resistance in potato cultivar sárpo mira maps to chromosome xi
description	Late blight of potato, caused by Phytophthorainfestans, is one of the most economically important diseases worldwide, resulting in substantial yield losses when not adequately controlled by fungicides. Late blight was a contributory factor in The Great Irish Famine, and breeding for resistance to the disease began soon after. Several disease-resistant cultivars have subsequently been obtained, and amongst them Sárpo Mira is currently one of the most effective. The aim of this work was to extend the knowledge about the genetic basis of the late blight resistance in Sárpo Mira and to identify molecular markers linked to the resistance locus which would be useful for marker-assisted selection. A tetraploid mapping population from a Sárpo Mira × Maris Piper cross was phenotyped for foliar late blight resistance using detached leaflet tests. A locus with strong effect on late blight resistance was mapped at the end of chromosome XI in the vicinity of the R3 locus. Sárpo Mira’s genetic map of chromosome XI contained 11 markers. Marker 45/XI exhibited the strongest linkage to the resistance locus and accounted for between 55.8 and 67.9 % of variance in the mean resistance scores noted in the detached leaflet assays. This marker was used in molecular marker-facilitated gene pyramiding. Ten breeding lines containing a late blight resistance locus from cultivar Sárpo Mira and the Rpi-phu1 gene originating from the late blight resistant accession of Solanumphureja were obtained. These lines have extended the spectrum of late blight resistance compared with Sárpo Mira and it is expected that resistance in plants containing this gene pyramid will have enhanced durability.
publisher	Springer Berlin Heidelberg
publishDate	2013
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3931936/
_version_	1612060932032167936

A locus conferring effective late blight resistance in potato cultivar Sárpo Mira maps to chromosome XI

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