Wei Zhang, Xiang Wei, Heng-Lin Meng, Chun-Hua Ma, Ni-Hao Jiang, Guang-Hui Zhang and Sheng-Chao Yang
BMC Plant Biology 2015, 15:248 doi:10.1186/s12870-015-0627-x
Erigeron breviscapus, a medicinal herb used in China, is a self-incompatible species of Asteraceae. However, the genetics of its SI responses remain unknown. To better understand SI, Wei Zhang and Xiang Wie of Yunnan Agricultural University and Honghe University, respectively, performed a transcriptomic analysis of E. breviscapus after self- and cross-pollination.
Differentially expressed genes were identified as well as genes that could be associated with SI responses. Several of these genes were up-regulated in self-pollinated plants but down-regulated in cross-pollinated plants, such as SLRK, MLPK, ARC1, CaM, Exo70A1, MAP, SF21, and Nod. However, analysis later revealed that SRLK gene expression was not related to SI.
Researchers identified genes showing differential expression and encoding critical regulators of SI responses in E. breviscapus. The study provided a pool of SI-related genes in E. breviscapus and offers a valuable resource for explaining the mechanisms of SI in Asteraceae.
For more information, feel free to read the article on BMC Plant Biology.
![Transcriptomic comparison of the self-pollinated and cross-pollinated flowers of Erigeron breviscapus to analyze candidate self-incompatibility-associated genes http://www.biomedcentral.com/content/figures/s12870-015-0627-x-6.jpg](/Images_upload/images/image003(24).jpg)
Fig. 6. a and b Heatmap analysis of three E. breviscapus samples for differentially expressed genes involved in SI, based on gene ontology analysis. Red shades indicate higher expression and green shades indicate lower expression. The color key indicates the intensity associated with normalized expression values.
|
[ Other News ]___________________________________________________
|