Virus Resistance and Cultivar Properties in Transgenic Tobacco Lines under Field Conditions

doi:10.3321/j.issn:1000-7091.1995.z1.007

Abstract

Abstract: The resistance to cucumber mosaic virus and the preservation of cultivar properties in transgenic tobacco cv NC89-B line expressing "CMV CP + Satellite RNA" and NC89-T line possessing CMV CP gene were tested under field conditions.The results indicated that the transgenic lines showed much higher resistance than the non-transformed plants.The disease index of the transgenic line B, the best line, averaged about 7.9 and 35.1 in contrast to about 40.6 and 72.5 of the non-transformed NC89 under natural condition and with inoculation of viruses, respectively.The agronomic properties of the transgenic lines improved but showed no genetic variation compared with the non-transformed plants.

Key words: Tobacco, Transgenic NC89, Resistance, Agronomic characters

CLC Number:

S572.03

Wu Zhongxin, Shen Jinchang, Wang Tingxiao, Wang Zhenkun, Yang Yongbin, Zhou Ruikuan. Virus Resistance and Cultivar Properties in Transgenic Tobacco Lines under Field Conditions[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(S1): 33-37. doi: 10.3321/j.issn:1000-7091.1995.z1.007.

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http://www.hbnxb.net/EN/Y1995/V10/IS1/33

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