Male sterility

Relationship between male sterility and β-1,3-glucanase activity and callose deposition-related gene expression in wheat (Triticum aestivum L.)

H. Z. Liu, Zhang, G. S., Zhu, W. W., Ba, Q. S., Niu, N., Wang, J. W., Ma, S. C., and Wang, J. S., Relationship between male sterility and β-1,3-glucanase activity and callose deposition-related gene expression in wheat (Triticum aestivum L.), vol. 14, pp. 574-584, 2015.

In previous studies, we first isolated one different protein β-1,3-glucanase using two-dimensional electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry from normal wheat (Triticum aestivum L.) and chemical hybridization agent-induced male sterility (CIMS) wheat. In this experiment, β-1,3-glucanase activity and the expression of a callose deposition-related gene, UDP-glucose phosphorylase (UGPase), were determinate in normal, CIMS, and genetic male sterility (GS) wheat.

Molecular cloning and expression of the male sterility-related CtYABBY1 gene in flowering Chinese cabbage (Brassica campestris L. ssp chinensis var. parachinensis)

X. L. Zhang and Zhang, L. G., Molecular cloning and expression of the male sterility-related CtYABBY1 gene in flowering Chinese cabbage (Brassica campestris L. ssp chinensis var. parachinensis), vol. 13, pp. 4336-4347, 2014.

Expression of the YABBY gene family in the abaxial surface of lateral plant organs determines abaxial destiny of cells, enhances growth and expansion of lateral organs, and plays an important role in polar establishment of lateral organs. However, the YABBY gene has not been studied in male sterility and fertility restoration. We homologously cloned the CtYABBY1 gene of male-sterile TC1 in Brassica campestris L. ssp chinensis var. parachinensis; its expression was analyzed by real-time PCR.

ms17: a meiotic mutation causing partial male sterility in a corn silage hybrid

M. S. Pagliarini, Souza, V. F., Silva, N., Scapim, C. A., Rodovalho, M., and Faria, M. V., ms17: a meiotic mutation causing partial male sterility in a corn silage hybrid, vol. 10. pp. 1958-1962, 2011.

Cytological analysis under light microscopy of the single hybrid P30R50 of silage corn revealed an abnormal pattern of microsporogenesis that affected the meiotic products. Meiosis progressed normally until diakinesis, but before migration to the metaphase plate, bivalents underwent total desynapsis and 20 univalent chromosomes were scattered in the cytoplasm. At this stage, meiocytes also exhibited a number of chromatin-like fragments scattered throughout the cell.

Isolation of fertility-related genes of multiple-allele-inherited male sterility in Brassica rapa ssp pekinensis by cDNA-AFLP

R. Q. Ji, Song, Q., Xin, X. F., Zhou, X., and Feng, H., Isolation of fertility-related genes of multiple-allele-inherited male sterility in Brassica rapa ssp pekinensis by cDNA-AFLP, vol. 10, pp. 4073-4083, 2011.

To better understand the molecular mechanisms of multiple-allele-inherited male sterility in Chinese cabbage (Brassica rapa ssp pekinensis), differentially expressed genes in fertile and sterile plants must be isolated. We used cDNA-AFLP analysis to isolate differentially expressed genes in fertile and sterile buds of the two-type line, AB01. Sixteen high-quality sequences were generated, 11 of which were up-regulated in fertile buds, and five of which were up-regulated in sterile buds.

Evidence of programmed cell death during microsporogenesis in an interspecific Brachiaria (Poaceae: Panicoideae: Paniceae) hybrid

V. A. Fuzinatto, Pagliarini, M. S., and Valle, C. B., Evidence of programmed cell death during microsporogenesis in an interspecific Brachiaria (Poaceae: Panicoideae: Paniceae) hybrid, vol. 6, pp. 308-315, 2007.

Morphological changes have been investigated during plant programmed cell death (PCD) in the last few years due to the new interest in a possible apoptotic-like phenomenon existing in plants. Although PCD has been reported in several tissues and specialized cells in plants, there have been few reports of its occurrence during microsporogenesis. The present study reports a typical process of PCD during meiosis in an interspecific Brachiaria hybrid leading to male sterility.

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