Transcriptomic and Proteomic Analyses of a New Cytoplasmic Male Sterile Line with wild Gossypium bickii. Genetic Background

Abstract

Cotton is an important fiber crop but has serious effects of heterosis, in which cytoplasmic male sterility (CMS) being the major cause of heterosis in plants. However, there are no studies done on CMS Yamian A in cotton with the genetic background of the Australian wild Gossypium bickii. Transcriptomic and proteomic results showed that UDP-glucosyltransferase - in the nucleus, 60S ribosomal protein L13a- in the cytoplasm, ribulose-1,5-bisphosphate carboxylase/oxygenase - in the chloroplast, glutathione S-transferase - in the cytoplasm, and ATP synthase F1 subunit 1 - in the mitochondrion were upregulated; while low molecular weight heat shock protein - in the chloroplast and ATP synthase D chain- in the mitochondrion were down-regulated expression at the microspore abortion stage of Yamian A. We constructed an interaction network and this study provides a comprehensive understanding of the mechanism of CMS in cotton by use of in Yamian A, with wild cotton genetic background.