Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis
The German wheat cultivar Ibis has excellent adult plant resistance (APR) to stripe rust in Gansu, a hotspot for stripe rust in China. To elucidate the genetic basis of APR to stripe rust in Ibis, 237 F3 lines derived from the cross Ibis/Huixianhong were evaluated at Tianshui, Gansu, in the 2008?2009 and 2009?2010 cropping seasons, and at Chengdu, Sichuan Province, China, in the 2009?2010 cropping season. Inoculations were conducted with a mixture of several prevalent Pst races in both locations. Maximum disease severity (MDS) data showed a continuous distribution of response, indicating quantitative nature of resistance to stripe rust in Ibis. The broad-sense heritability of MDS was 0.75 based on the mean values averaged across three environments. A total of 723 simple sequence repeat (SSR) markers were used to map the QTL for APR by inclusive composite interval mapping (ICIM). QTLs mapping to chromosomes 2BS and 6BS, designated as QYr.caas-2BS.1 and QYr.caas-6BS.1, respectively, explained 4.1?40.7% of the phenotypic variance in MDS across environments. The major effect QTL QYr.caas-2BS.1, flanked by Xgwm148 and Xwmc360, was consistently detected at all three sites as well as the averaged data over three environments, accounting for 40.7, 24.2, 5.2 and 29.9% of phenotypic variance, respectively. The molecular markers closely linked to this QTL have potential for use in marker-assisted selection and gene pyramiding to improve the durability of stripe rust resistance in wheat breeding.
Main Authors: | , , , , , , , , |
---|---|
Format: | Article biblioteca |
Language: | English |
Published: |
Elsevier
2012
|
Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, APR, Simple Sequence Repeat Markers, TRITICUM AESTIVUM, PUCCINIA STRIIFORMIS, DISEASE RESISTANCE, MICROSATELLITES, |
Online Access: | http://hdl.handle.net/10883/2947 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cimmyt-10883-2947 |
---|---|
record_format |
koha |
spelling |
dig-cimmyt-10883-29472024-03-13T14:41:00Z Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis Bin Bai Ren Yan Xianchun Xia Jiuyuan Du Gang Zhou Ling Wu Huazhong Zhu He Zhonghu Wang Cheng-she AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES The German wheat cultivar Ibis has excellent adult plant resistance (APR) to stripe rust in Gansu, a hotspot for stripe rust in China. To elucidate the genetic basis of APR to stripe rust in Ibis, 237 F3 lines derived from the cross Ibis/Huixianhong were evaluated at Tianshui, Gansu, in the 2008?2009 and 2009?2010 cropping seasons, and at Chengdu, Sichuan Province, China, in the 2009?2010 cropping season. Inoculations were conducted with a mixture of several prevalent Pst races in both locations. Maximum disease severity (MDS) data showed a continuous distribution of response, indicating quantitative nature of resistance to stripe rust in Ibis. The broad-sense heritability of MDS was 0.75 based on the mean values averaged across three environments. A total of 723 simple sequence repeat (SSR) markers were used to map the QTL for APR by inclusive composite interval mapping (ICIM). QTLs mapping to chromosomes 2BS and 6BS, designated as QYr.caas-2BS.1 and QYr.caas-6BS.1, respectively, explained 4.1?40.7% of the phenotypic variance in MDS across environments. The major effect QTL QYr.caas-2BS.1, flanked by Xgwm148 and Xwmc360, was consistently detected at all three sites as well as the averaged data over three environments, accounting for 40.7, 24.2, 5.2 and 29.9% of phenotypic variance, respectively. The molecular markers closely linked to this QTL have potential for use in marker-assisted selection and gene pyramiding to improve the durability of stripe rust resistance in wheat breeding. 528-536 2013-06-07T21:12:58Z 2013-06-07T21:12:58Z 2012 Article 2095-3119 http://hdl.handle.net/10883/2947 10.1016/S2095-3119(12)60039-2 English CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. Open Access PDF Elsevier http://www.sciencedirect.com/science/article/pii/S2095311912600392 4 11 Journal of Integrative Agriculture |
institution |
CIMMYT |
collection |
DSpace |
country |
México |
countrycode |
MX |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cimmyt |
tag |
biblioteca |
region |
America del Norte |
libraryname |
CIMMYT Library |
language |
English |
topic |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES |
spellingShingle |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES Bin Bai Ren Yan Xianchun Xia Jiuyuan Du Gang Zhou Ling Wu Huazhong Zhu He Zhonghu Wang Cheng-she Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
description |
The German wheat cultivar Ibis has excellent adult plant resistance (APR) to stripe rust in Gansu, a hotspot for stripe rust in China. To elucidate the genetic basis of APR to stripe rust in Ibis, 237 F3 lines derived from the cross Ibis/Huixianhong were evaluated at Tianshui, Gansu, in the 2008?2009 and 2009?2010 cropping seasons, and at Chengdu, Sichuan Province, China, in the 2009?2010 cropping season. Inoculations were conducted with a mixture of several prevalent Pst races in both locations. Maximum disease severity (MDS) data showed a continuous distribution of response, indicating quantitative nature of resistance to stripe rust in Ibis. The broad-sense heritability of MDS was 0.75 based on the mean values averaged across three environments. A total of 723 simple sequence repeat (SSR) markers were used to map the QTL for APR by inclusive composite interval mapping (ICIM). QTLs mapping to chromosomes 2BS and 6BS, designated as QYr.caas-2BS.1 and QYr.caas-6BS.1, respectively, explained 4.1?40.7% of the phenotypic variance in MDS across environments. The major effect QTL QYr.caas-2BS.1, flanked by Xgwm148 and Xwmc360, was consistently detected at all three sites as well as the averaged data over three environments, accounting for 40.7, 24.2, 5.2 and 29.9% of phenotypic variance, respectively. The molecular markers closely linked to this QTL have potential for use in marker-assisted selection and gene pyramiding to improve the durability of stripe rust resistance in wheat breeding. |
format |
Article |
topic_facet |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY APR Simple Sequence Repeat Markers TRITICUM AESTIVUM PUCCINIA STRIIFORMIS DISEASE RESISTANCE MICROSATELLITES |
author |
Bin Bai Ren Yan Xianchun Xia Jiuyuan Du Gang Zhou Ling Wu Huazhong Zhu He Zhonghu Wang Cheng-she |
author_facet |
Bin Bai Ren Yan Xianchun Xia Jiuyuan Du Gang Zhou Ling Wu Huazhong Zhu He Zhonghu Wang Cheng-she |
author_sort |
Bin Bai |
title |
Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
title_short |
Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
title_full |
Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
title_fullStr |
Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
title_full_unstemmed |
Mapping of quantitative trait loci for adult plant resistance to stripe rust in German wheat cultivar Ibis |
title_sort |
mapping of quantitative trait loci for adult plant resistance to stripe rust in german wheat cultivar ibis |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://hdl.handle.net/10883/2947 |
work_keys_str_mv |
AT binbai mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT renyan mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT xianchunxia mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT jiuyuandu mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT gangzhou mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT lingwu mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT huazhongzhu mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT hezhonghu mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis AT wangchengshe mappingofquantitativetraitlociforadultplantresistancetostriperustingermanwheatcultivaribis |
_version_ |
1794797609048604672 |