Research into Genetic Problems of Powdery Mildew Resistance Gene in Tobacco

DOI

10.2991/icmmbe-16.2016.6How to use a DOI?

Keywords

Tobacco; Powdery Mildew; Resistance Gene; Genetic Problem

Abstract

Objective: To study the genetic problems of powdery mildew resistance gene in tobacco. Method: after tobacco powdery mildew resistant variety and susceptible variety provided by a greenhouse during May 2015~ May 2016 were selected as the research object, to build a genetic model, genetic laws of resistance gene to tobacco powdery mildew were observed by adopting segregation analysis method. Results: genetics of resistance to tobacco powdery mildew was controlled by recessive genes; compatibility test showed that model E-0 was the optimal model, i.e. genetics of resistance to powdery mildew was controlled by 2 pairs of genes, which respectively were additive-dominant-epistatic major gene and its polygene; the heritability of B1 generation major gene and polygene was 88.6% and 0.0% separately, while the one of F2 generation major gene was 84.5% and 0.0% respectively. Conclusion: pay attention to the selection of disease-resistant materials, interaction effect between genes and environmental factor in practice.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yan Chen
AU  - Jiazhong Liu
AU  - Hongmei Li
AU  - Shuyingi Li
PY  - 2016/09
DA  - 2016/09
TI  - Research into Genetic Problems of Powdery Mildew Resistance Gene in Tobacco
BT  - Proceedings of the6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016)
PB  - Atlantis Press
SP  - 25
EP  - 28
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmbe-16.2016.6
DO  - 10.2991/icmmbe-16.2016.6
ID  - Chen2016/09
ER  -