• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cotton Reseach Journal >Identification of Resistance Source for Bacterial Blight Disease caused by Xanthomonas axonopodis pv. malvacectrum and it’s Genetic Inheritance in Upland Cotton
【24h】

Identification of Resistance Source for Bacterial Blight Disease caused by Xanthomonas axonopodis pv. malvacectrum and it’s Genetic Inheritance in Upland Cotton

机译：鉴定由黄单胞菌xv引起的细菌性白叶枯病抗药性来源。棉花的大麦芽孢杆菌及其遗传遗传

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cotton bacterial blight caused by Xanthomonas axonopodis pv. malvacearum (Xam) is most destructive bacterial disease of upland cottonfound all over cotton growing areas. Identification of resistant source to highly virulent race through proper artificial screening techniques and to study the genetic inheritance for resistant breeding programme is utmost important. To identify the Xam races, isolates were collected from different cotton growing areas and inoculated on ten cotton differentials. Among these isolates four races viz. race 6, 8, 15 arid 18 were identified. In Kharif 2007-08 total 68 cotton genotypes were screened against most virulent race 18 by syringe infiltration method and two genotypes viz. Ca/H-631 and Ca/H-2046 were found highly resistant. For genetic inheritance study of bacterial blight resistance, Ca/H-631 and Ca/H-2046 were crossed with highly susceptible genotypes viz. Ca/H-658 and Ca/H-551. The resultant F/s were inoculated with the race 18 and the same were found resistant,indicating the dominant nature of the gene. In Kharif 2010, total 500 plants of eachF_2’s were grown and screenedfor bacterial blight resistance. The segregation fits in 3:1 ratio for resistance to susceptible. The same populations were also screened with published markers and found perfect correlation between phenotype and genotype generated by the markers, indicating the resistance is governed by single dominant gene.
机译：棉花细菌性疫病是由轴生黄单胞菌PV引起的。 malvacearum（Xam）是陆地棉地区最具破坏力的细菌性疾病，遍布整个棉花种植​​区。通过适当的人工筛选技术鉴定对高毒种的抗性来源，并研究抗性育种计划的遗传遗传至关重要。为了鉴定Xam种族，从不同的棉花种植地区收集了分离株，并接种了十种棉花。在这些分离物中，有四个种族。确定了第6、8、15和18种族。在2007-08年的Kharif中，通过注射器浸润法筛选了针对最强毒种18的68种棉花基因型和2种基因型。发现Ca / H-631和Ca / H-2046具有很高的抵抗力。为了对细菌性白叶枯病进行遗传遗传研究，将Ca / H-631和Ca / H-2046与高度易感的基因型杂交。 Ca / H-658和Ca / H-551。将所得的F / s接种至第18族，发现其具有抗性，表明该基因的显性。在2010年的Kharif中，每个F_2总共种植了500株植物，并筛选了抗白叶枯病。隔离适合3：1的比例以抵抗敏感。还用公开的标记筛选了相同的种群，发现表型与标记产生的基因型之间具有完美的相关性，表明抗性由单个显性基因控制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号