Evolutionary divergence in embryo and seed coat development of U’s Triangle Brassica species illustrated by a spatiotemporal transcriptome atlas

• DOI: 10.1111/nph.17759
• Publication Date: 2021-10-23T19:22:57Z
• Authors: Peng Gao; Teagen D. Quilichini; Hui Yang; Qiang Li; Kirby T. Nilsen; Li Qin; Vivijan Babic; Li Liu; Dustin Cram; Asher Pasha; Eddi Esteban; Janet Condie; Christine Sidebottom; Yan Zhang; Yi Huang; Wentao Zhang; Pankaj Bhowmik; Leon V. Kochian; David Konkin; Yangdou Wei; Nicholas J. Provart; Sateesh Kagale; Mark Smith; Nii Patterson; C. Stewart Gillmor; Raju Datla; Daoquan Xiang
• Keywords: Polyploid

Summary The economically valuable Brassica species include the six related members of U’s Triangle. Despite agronomic and economic importance these Brassicas , impacts evolution relatively recent domestication events on genetic landscape seed development have not been comprehensively examined in species. Here we present a 3D transcriptome atlas for Triangle, producing unique resource that captures gene expression data major subcompartments seed, from unfertilized ovule to mature embryo coat. This comprehensive dataset tetraploid ancestral diploid provides new insights into evolutionary divergence bias at subgenome levels during valued crop Comparisons associated with regulatory networks metabolic pathways operating coat reveal differences storage reserve accumulation fatty acid metabolism among study illustrates underpinnings traits selective pressures placed production, providing an immense continued investigation polyploid biology, genomics evolution.