Genome-Wide Analysis and Characterization of Aux/IAA Family Genes in Brassica rapa

• DOI: 10.1371/journal.pone.0151522
• Publication Date: 2016-04-06T19:27:44Z
• Authors: Parameswari Paul; Vignesh Dhandapani; Jana Jeevan Rameneni; Xiaonan Li; Ganesan Sivanandhan; Su Ryun Choi; Wenxing Pang; Subin Im; Yong Pyo Lim
• Keywords: Brassica rapa

Auxins are the key players in plant growth development involving leaf formation, phototropism, root, fruit and embryo development. Auxin/Indole-3-Acetic Acid (Aux/IAA) early auxin response genes noted as transcriptional repressors signaling. However, many studies focus on Aux/ARF gene families much less is known about Aux/IAA family Brassica rapa (B. rapa). Here we performed a comprehensive genome-wide analysis identified 55 B. using four conserved motifs of (PF02309). Chromosomal mapping (BrIAA) facilitated understanding cluster rearrangement crucifer building blocks genome. Phylogenetic BrIAA with Arabidopsis thaliana, Oryza sativa Zea mays 51 sister pairs including 15 same species (BrIAA—BrIAA) 36 cross (BrIAA—AtIAA) IAA genes. Among genes, expression 43 45 were verified Genebank ESTs home developed microarray data from mature leaves Chiifu RcBr lines. Despite their huge morphological difference, tissue specific between parental lines showed that followed similar pattern during different bud, flower siliqua stages. The to abiotic stress at time intervals revealed involvement response. Single Nucleotide Polymorphisms reference genome focused identified. Our study examines scope conservation divergence structures rapa. Analyzing structural variation two will significantly contribute functional genomics crops belive our would provide foundation