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	1. Analysis of gene expression in anther development of cytoplasmic male sterile Raphanas sativus L.
	SHI Shengli,WANG Jianbo
	Biology 20 January 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The anthers in ?owers perform important functions in sexual reproduction. Seldom studies have been made to study anther transcriptomes to explore genes controlling anther development. To analyze the characteristics of gene expression during the male sterile anther degeneration, we produced transcriptomes of anthers of radish (Raphanus sativus L.) at three progressive developmental stages with cDNA-AFLP method. The transcriptomes included at least 2556 unique transcripts, which involved in transcription, signal transduction, DNA synthesis, cell growth and others. The differential developmental pro?les of the transcripts signify extensive regulation of gene expression in the anther during development. The transcriptomes were used to dissect the major abnormality of gene expression of the sterile anther. First, we categorized and charted the developmental pro?les of all transcripts present in the anther; the transcripts of the sterile anther represent obviously difference contrast to the fertile anther. Second, we successfully selected genes from hundreds of transcripts encoding proteins for transcription, signal transduction, materials transport, and pollen wall formation.
	TO cite this article:SHI Shengli,WANG Jianbo. Analysis of gene expression in anther development of cytoplasmic male sterile Raphanas sativus L.[OL].[20 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4582792


	2. Bridging the mathematics-botany gaps in phyllotaxis studies — Mechanism of higher symmetry order phyllotaxis
	Yang Weisheng,Zhao Ruguang
	Biology 31 May 2009
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	Abstract:For centuries, mathematicians, physicists, crystallographers, and others, together with botanists have been dedicating their own efforts to phyllotaxis, however, obviously because until recently they have had surprisingly little interaction, a major question is still how higher symmetry order patterns are generated at all. Accordingly, in the present article we make our effort mainly for bridging the mathematics-botany gaps existing in recent phyllotaxis studies. By doing so and on the basis of the latest progresses achieved from both the botany and mathematics sides of phyllotaxis, we point out that higher symmetry order phyllotaxis patterns can and could only come from lower order patterns generated by small shoot apical meristems (SAM) through anisotropic growth, which may change the diameter-to-height ratio of phyllotactic objects. In another words, higher symmetry order phyllotaxis patterns, such as floral phyllotaxis patterns of sunflower, could not generated directly by large SAMs.
	TO cite this article:Yang Weisheng,Zhao Ruguang. Bridging the mathematics-botany gaps in phyllotaxis studies — Mechanism of higher symmetry order phyllotaxis[OL].[31 May 2009] http://en.paper.edu.cn/en_releasepaper/content/32686

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