1974年3月出生于山东省东明县。1999年, 西北农业大学获农学学士学位; 2002年, 西北农林科技大学获农学硕士学位; 2007年, 中国科学院上海生命科学院植物生理生态研究所获理学博士学位。2007年-2013年，在日本名古屋大学生物机能开发利用研究中心从事博士后研究。2013年任中国科学院植物研究所研究员。曾荣获2009年中国百篇优秀博士学位论文奖。近年来在Nature、Nature Genetics、Genes & Development、Cell Research等国内外著名学术期刊上公开发表论文6篇，申请或授权国内专利2项，国际专利1项。

主要研究工作：

本研究组主要从事水稻重要性状遗传和功能基因组学研究。现阶段主要包括以下内容的工作：1、组蛋白乙酰化调控水稻生长发育的分子机理研究；2、系统解析控制水稻粒型的分子模块和耦合组装；3、一个新的控制水稻粒重QTL的功能分析。

研究论文（注*为通讯作者,§为共同第一作者）：

2018

Ying JZ§, Ma M§, Bai C§, Huang XH, Liu JL, Fan YY, Song XJ*. 2018. TGW3, a major QTL that negatively modulates grain length and weight in rice. Mol. Plant, 11: 750-753.

Qin YB, Cheng P, Cheng YC, Feng X, Huang DR, Huang TX, Song XJ*, Ying JZ*. 2018. QTL-seq identified a major QTL for grain length and weight in rice using near isogenic F2 population. Rice Sci., 25: 121-131.

2017

Song XJ*. 2017. Crop seed size: BR matters. Mol. Plant, 10: 668-669.

2016

Yamaguchi M, Fujimoto H, Hirano K, Araki-Nakamura S, Ohmae-Shinohara K, Fujii A, Tsunashima M, Song XJ, Ito Y, Nagae R, Wu JZ, Mizuno H, Yonemaru J,Matsumoto T, Kitano H, Matsuoka M, Kasuga S, Sazuka T*. 2016. Sorghum Dw1, an agronomically important gene for lodging resistance, encodes a novel protein involved in cell proliferation. Sci. Rep., 6: 28366.

2015

Song XJ, Kuroha T, Ayano M, Furuta T, Nagai K, Komeda N, Segami S, Miura K, Ogawa D, Kamura T, Suzuki T, Higashiyamai T, Yamasaki M, Mori H, Inukai Y, Wu JZ, Kitano H, Sakakibara H, Jacobsen S, Ashikari M. 2015. Rare allele of a novel histone H4 acetyltransferase enhances grain weight, yield and plant biomass in rice. Proc. Natl. Acad. Sci. USA, 112:76-81.

Seki M, Feugier F, Song XJ, Ashikari M, Nakamura H, Ishiyama K, Yamaya T, Inari-Ikeda M, Kitano H, Satake A. 2015. A mathematical model of phloem sucrose transport as a new tool for designing rice panicle structure for high grain yield. Plant Cell Physiology, 56: 605-619.

2014

Song XianJun*, Kuroha Takeshi, Ayano Madoka, Furuta Tomoyuki, Nagai Keisuke, Komeda Norio, Segami Shuhei, Miura Kotaro,Ogawa Daisuke, Kamura Takumi,Suzuki Takamasa, Higashiyamai Tetsuya, Yamasaki Masanori, Mori Hitoshi, Inukai Yoshiaki, Wu Jianzhong, Kitano Hidemi, Sakakibara Hitoshi,Steven E. Jacobsen *, and AshikariMotoyuki *. 2014. Rare Allele of A Novel Histone H4 Acetyltransferase Enhances Grain Weight, Yield and Plant Biomass in Rice. Proceedings of the National Academy of Sciences USA, DOI: 10.1073/pnas.1421127112.

Seki Motohide*, Gabriel Feugier Fran？ois 1, Song Xianjun, Ashikari Motoyuki, Nakamura Haruka, Ishiyama Keiki, Yamaya Tomoyuki, Inari-Ikeda Mayuko, Kitano Hidemi, Satake Akiko. 2014. A mathematical model of phloem sucrose transport as a new tool for designing rice panicle structure for high grain yield. Plant and Cell Physiology, DOI: 10.1093/pcp/pcu191.

2012

Qi P.#, Lin Y.L.#, Song X.J.#, Shen J.B., Huang W., Shan J.X., Zhu M.Z., Jiang L.W., Gao J.P. & Lin H.X.*.2012.The novel quantitative trait locus GL3.1 controls rice grain size and yield by regulating cyclin-T1;3. Cell Res., 22, 1666-80. (# Contributed equally).

2010及以前

Miura K, Ikeda M, Matsubara A, Song X.J., Ito M, Asano K, Matsuka M, Kitano H & Ashikari M. 2010. OsSPL14 promotes panicle branching and higher grain productivity in rice. Nat. Genet., 42, 545-550.

Hattori Y., Nagai K., Furukawa S., Song X.J., Kawano R., Sakakibara H., Wu J.Z., Matsumoto T., Yoshimura A., Kitano H., Matsuoka M., Mori H., Ashikari M. 2009. The ethylene response factors SNORKEL1 and SNORKEL2 allow rice to adapt to deep water. Nature, 460, 1026-1030.

Song X.J. & Matsuoka M. 2009. Bar the windows: an optimized strategy to survive drought and salt adversities. Genes & Dev., 23, 1709-1713.

SongX.J. & Ashikari M. 2008. Toward an optimum return from crop plants. Rice, 1, 135-143.

Song X.J.#, Huang W.#, Shi M., Zhu M.Z. & Lin H.X. * .2007. A QTL for rice grain width and weight encodes a previously unknown RING-type E3 ubiquitin ligase. Nat. Genet.,39, 623-630(# Contributed equally).