Morphological and genetic characteristics of genetic tumor in Nicotiana glauca |
| |
Authors: | Yan An Jia Guo Lingling Lou Guan-Zheng Qu |
| |
Institution: | 1. Key Laboratory of Forest Tree Genetic Improvement and Biotechnology (Northeast Forestry University), Ministry of Education, 26 Hexing Road, Harbin, 150040, China 2. College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
|
| |
Abstract: | It is well understood that genetic tumors develop in certain interspecific Nicotiana hybrids. Nicotiana species are divided into “plus” and “minus” groups and crosses between “plus” and “minus” species give rise to tumorous hybrids. However, it has been proposed that parents and hybrids derived from crosses among members within the same group do not produce tumors. In this study, genetic tumors were only obtained in Nicotiana glauca, which exhibited tumor features similar to those of N. glauca × N. langsdorffii. Our results suggest that genetic factors may control tumor formation independent of tumor induction dependent on the specific interspecific cross. Genetic tumor formation exhibited high B-type and D-type cyclin expression levels, indicating tumor cells are characterized by an uncontrolled cell cycle. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|