ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (6): 141-145. doi: 10.3969/j.issn.1000-7091.2012.06.028

Special Issue: Rice Biotechnology

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Analysis on Breeding Value of Pi-taPi-bGenes in Japonica Rice Breeding with Neck Resistance in Jiangsu

WANG Jun, YANG Jie, YANG Jin-huan, FAN Fang-jun, ZHU Jin-yan, CHEN Zhi-de, ZHONG Wei-gong   

  1. Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing Branch of Chinese National Center for Rice Improvement, Nanjing 210014, China
  • Received:2012-07-27 Published:2012-12-28

Abstract: Functional Markers of blast resistance genes Pi-taPi-bwere used to detect part of Japonica rice lines in Jiangsu province intermediate experiment of 2009 and 2010 years. Combing with the blast resistance results, the value of Pi-taPi-bin Jiangsu province Japonica rice neck blast resistance was analyzed by correlation analysis. The result indicated that Pi-taand Pi-bwere positively correlated with neck blast resistance of Japonica rice in Jiangsu province. The correlation coefficients of Pi-tawere 0. 50 and 0. 37 respectively in two years as the correlation coefficients of Pi-bwere 0. 55 and 0. 51. The correlation coefficients of two genes joint effect were 0. 71 and 0. 62 respectively. Therefore,carrying both of this two resistance genes can greatly improve the resistance of Japonica rice in Jiangsu province.

Key words: Rice, Blast, Neck blast, Pi-tagene, Pi-bgene, Disease-resistance breeding

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Cite this article

WANG Jun, YANG Jie, YANG Jin-huan, FAN Fang-jun, ZHU Jin-yan, CHEN Zhi-de, ZHONG Wei-gong. Analysis on Breeding Value of Pi-taPi-bGenes in Japonica Rice Breeding with Neck Resistance in Jiangsu[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(6): 141-145. doi: 10.3969/j.issn.1000-7091.2012.06.028.

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