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Acta Agron Sin ›› 2006, Vol. 32 ›› Issue (06): 936-938.

• RESEARCH NOTES • Previous Articles     Next Articles

Inheritance and Gene Mapping of Resistance to SMV Strain SC-7 in Soybean

ZHAN Yong1,YU De-Yue1, CHEN Shou-Yi2,GAI Jun-Yi1   

  1. 1Soybean Research Institute of Nanjing Agricultural University; National Center for Soybean Improvement; and National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing 210095, Jiangsu; 2Institute of Genetics of Chinese Academy of Sciences, Beijing 100101, China
  • Received:2005-05-23 Revised:1900-01-01 Online:2006-06-12 Published:2006-06-12

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Abstract:

The P1, P2, F1 and 180 RILs of Kefeng 1×Nannong1138-2 were inoculated with the SMV strain SC-7 for identification of their resistance. The results showed Kefeng 1 being resistant, Nannong 1138-2 being susceptible, F1 being resistant, and the RILs segregating in a 1:1 ratio, which indicated that a dominant gene controlled the resistance to SC-7. With linkage analysis, the resistance gene Rsc-7 was located on the linkage group N8-D1b+W and linked with three of five resistance genes and a RFLP maker LC5T. The order and genetic distance of linked genes were Rsa (30.6 cM) Rsc-7 (22.1 cM) Rn3 (10.3 cM) Rn1 (15.8 cM) LC5T.

Key words: Soybean, Soybean Mosaic Virus (SMV), Strain SC-7, Inheritance of resistance, Gene mapping

CLC Number: 

  • S562
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