Person: Xianchun Xia
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Xianchun Xia
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Xianchun Xia
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0000-0003-2071-197X 4 results
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- QTL mapping for pre-harvest sprouting in a recombinant inbred line population of elite wheat varieties Zhongmai 578 and Jimai 22(ICS, 2023) Shawai, R.S.; Dan Liu; Lingli Li; Chen, T.; Ming Li; Shuanghe Cao; Xianchun Xia; Jindong Liu; He Zhonghu; Yong Zhang
Publication - QTL mapping of drought tolerance at germination stage in wheat using the 50 K SNP array(Cambridge University Press, 2021) Yi Ren; Jindong Liu; Jianxin Zhang; Dreisigacker, S.; Xianchun Xia; Hongwei Geng
Publication - Resistance of slow mildewing genes to stripe rust and leaf rust in common wheat(Science Press, 2014) Jindong Liu; Xinmin Chen; He Zhonghu; Ling Wu; Bin Bai; Zaifeng Li; Xianchun Xia
Publication - Genome-wide linkage mapping of QTL for adult-plant resistance to stripe rust in a chinese wheat population Linmai 2 × Zhong 892(Public Library of Science, 2015) Jindong Liu; He Zhonghu; Ling Wu; Bin Bai; Weie Wen; Chaojie Xie; Xianchun XiaStripe rust is one of the most devastating diseases of wheat (Triticum aestivum) worldwide. Adult-plant resistance (APR) is an efficient approach to provide long-term protection of wheat from the disease. The Chinese winter wheat cultivar Zhong 892 has a moderate level of APR to stripe rust in the field. To determine the inheritance of the APR resistance in this cultivar, 273 F6 recombinant inbred lines (RILs) were developed from a cross between Linmai 2 and Zhong 892. The RILs were evaluated for maximum disease severity (MDS) in two sites during the 2011–2012, 2012–2013 and 2013–2014 cropping seasons, providing data for five environments. Illumina 90k SNP (single nucleotide polymorphism) chips were used to genotype the RILs and their parents. Composite interval mapping (CIM) detected eight QTL, namely QYr.caas-2AL, QYr.caas-2BL.3, QYr.caas-3AS, QYr.caas-3BS, QYr.caas-5DL, QYr.caas-6AL, QYr.caas-7AL and QYr.caas-7DS.1, respectively. All except QYr.caas-2BL.3 resistance alleles were contributed by Zhong 892. QYr.caas-3AS and QYr.caas-3BS conferred stable resistance to stripe rust in all environments, explaining 6.2–17.4% and 5.0–11.5% of the phenotypic variances, respectively. The genome scan of SNP sequences tightly linked to QTL for APR against annotated proteins in wheat and related cereals genomes identified two candidate genes (autophagy-related gene and disease resistance gene RGA1), significantly associated with stripe rust resistance. These QTL and their closely linked SNP markers, in combination with kompetitive allele specific PCR (KASP) technology, are potentially useful for improving stripe rust resistances in wheat breeding.
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