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. 2012 Feb 15;12:23. doi: 10.1186/1471-2229-12-23

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Copyright ©2012 Ma et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Gene regulatory network of anther development during early stages. Gene regulation is represented by T-bars (negatively) and arrows (positively). The direct regulation confirmed by experiment is represented in bold line. Genes encoding proteins with interaction is represented by double arrows. Gene expression patterns in different tissues are shown by colors (blue for anther specific; red for anther-preferential; green for reproductive-preferential and yellow for genes not included in ATH1 chip). Gene function in tapetum formation is marked by an apostrophe; in pollen wall formation by an asterisk; in callose dissolution by double asterisks; in stamen and petal formation by the letter b; in stamen and carpel formation by the letter c.