Author(s)

Chao Liu¹, Jiangbo Dang¹, Lingli Wang², Zhi Chen¹, Ying Wang¹, Guanrong Li³, Guolu Liang¹

¹College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China.
²Technical Advice Station of Economic Crop, Yubei District, Chongqing, China.
³College of Agronomy and Biotechnology, Southwest University, Chongqing, China.

Few reports have been seen on the segregation of polyploids and on the relationship between the segregation of SSR loci and that of the morphological traits in polyploid progeny. This paper attempted to gain an insight into the segregation of the hexaploid tobacco progeny and to understand the correlation of the segregation of SSR loci with that of the flower morphological traits. The segregation was evaluated with both SSR markers and morphological traits of the flowers. Twenty pairs of SSR primers were screened and a total of 42 SSR loci were identified. Chi-square analysis showed that the segregation ratio of the SSR loci in the aneuploid progeny was between 1:1 and 2:1. Six morphological traits of flowers, including the lengths of the flower and the calyx, the widths of the calyx, the corolla tube and the corolla, and the coloring of the flower, from 180 progeny and 2 progenitor plants, were determined and Chi-square analyzed. All traits were in consistent also with a segregation ratio of 1:1 to 2:1 except the width of the calyx.

Hexaploid Tobacco, SSR Markers, Flower Morphological Traits, Segregation Correlation

Liu, C. , Dang, J. , Wang, L. , Chen, Z. , Wang, Y. , Li, G. and Liang, G. (2018) Segregation Correlation of SSR Markers and Flower Traits in Aneuploid Tobacco. World Journal of Engineering and Technology, 6, 225-240. doi: 10.4236/wjet.2018.62013.