[1] 李瑾.桂花花芽分化的研究[D].开封: 河南大学, 2007.

LI Jin. Study on The Flower Bud Differentiation of Osmanthus fragrans Lour.[D]. Kaifeng: Henan University, 2007.
[2] 邱芳, 张波, 史玉敏, 等.不同龄期桂花花芽分化期间矿质元素和可溶性糖含量的变化[J].安徽农业科学, 2012, 41(24):10024-10026.

QIU Fang, ZHANG Bo, SHI Yumin, et al. Changes of mineral elements and the soluble sugar content at flower bud differentiation of Osmanthus fragrans (Thunb.) Lour. on different ages[J]. J Anhui Agric Sci, 2013, 41(24):10024-10026.
[3] 王彩云, 高丽萍, 鲁涤非, 等. '厚瓣金桂'桂花花芽形态分化的研究[J].园艺学报, 2002, 29(1):52-56.

WANG Caiyun, GAO Liping, LU Difei, et al. A study on morphological differentiation of flower bud of Osmanthus fragrans 'Houban Jingui'[J]. Acta Hortic Sin, 2002, 29(1):52-56.
[4] 王英, 张超, 付建新, 等.桂花花芽分化和花开放研究进展[J].浙江农林大学学报, 2016, 33(2):340-347.

WANG Ying, ZHANG Chao, FU Jianxin, et al. Progresses on flower bud differentiation and flower opening in Osmanthus fragrans[J]. J Zhejiang A&F Univ, 2016, 33(2):340-347.
[5] 曹际云.桂花不同栽培变种的成花条件及花器官发育的形态解剖学研究[D].济南: 山东大学, 2008.

CAO Jiyun. The Study on the Qualification of Floral Formation and Development of Floral Orgrans of Osmanthus fragrans[D]. Ji'nan: Shandong University, 2008.
[6] 韩远记.桂花花色变异的机理和不同花色品种花瓣的cDNa-AFLP差异分析[D].开封: 河南大学, 2014.

HAN Yuanji. Mechanism of Flower Color Variation and cDNA-AFLP Analysis of 2 Clutivar with Different Flower Color in Osmanthus fragrans[D]. Kaifeng: Henan University, 2014.
[7] 母洪娜, 孙陶泽, 杨秀莲, 等.两个桂花品种花色色素相关基因的差异表达[J].南京林业大学学报(自然科学版), 2015, 39(3):183-186.

MU Hongna, SUN Taoze, YANG Xiulian, et al. Differential expression of flower color related genes of Osmanthus fragrans Lour. 'Chenghongdangui' and 'Zaoyingui'[J]. J Nanjing For Univ Nat Sci Ed, 2015, 39(3):183-186.
[8]

LI Fafang, HUANG Qizhi. Analysis of fragrance composition in three cultivars of Osmanthus fragrans Albus group flower by gas chromatography-mass spectrometry[J]. Wuhan Univ J Nat Sci, 2011, 16(4):342-348.
[9] 侯丹, 付建新, 张超, 等.桂花品种'堰虹桂''玉玲珑'和'杭州黄'的香气成分及释放节律[J].浙江农林大学学报, 2015, 32(2):208-220.

HOU Dan, FU Jianxin, ZHANG Chao, et al. Flower scent composition of Osmanthus fragrans 'Yanhong Gui' 'Yu Linglong' and 'Hangzhou Huang', and their emission patterns[J]. J Zhejiang A&F Univ, 2015, 32(2):208-220.
[10]

de OLIVEIRA L A, BRETON M C, BASTOLLA F M, et al. Reference genes for the normalization of gene expression in Eucalyptus species[J]. Plant Cell Physiol, 2012, 53(2):405-422.
[11]

PINTO F, PACHECO C C, FERREIRA D, et al. Selection of suitable reference genes for RT-qPCR analyses in cyanobacteria[J]. PLoS One, 2012, 7(4):e34983. doi:10.1371/journal.pone.0034983.
[12]

ZHANG Chao, FU Jianxin, WANG Yiguang, et al. Identification of suitable reference genes for gene expression normalization in the quantitative real-time PCR analysis of sweet osmanthus (Osmanthus fragrans Lour.)[J]. PLoS One, 2015, 10(8):e0136355. doi:10.1371/journal.pone.0136355.
[13]

ARTICO S, NARDELI S, BRILHANTE O, et al. Identification and evaluation of new reference genes in Gossypium hirsutum for accurate normalization of real-time quantitative RT-PCR data[J]. BMC Plant Biol, 2010, 10(1):49-60.
[14]

JAIN M, NIJHAWAN A, TYAGI A K, et al. Validation of housekeeping genes as internal control for studying gene expression in rice by quantitative real-time PCR[J]. Biochem Biophysic Res Commun, 2006, 345(2):646-651.
[15] 胡瑞波, 范成明, 傅永福.植物实时荧光定量PCR内参基因的选择[J].中国农业科技导报, 2009, 11(6):30-36.

HU Ruibo, FAN Chengming, FU Yongfu. Reference gene selection in plant real-time quantitative reserve transcription PCR (qRT-PCR)[J]. J Agric Sci Technol, 2009, 11(6):30-36.
[16] 陆婷, 王艺光, 骆义波, 等.'四季桂'不同季节的花芽分化与发育比较[J].园艺学报, 2017, 44(6):1145-1156.

LU Ting, WANG Yiguang, LUO Yibo, et al. Comparison on flower bud differentiation and development of different seasons in Osmanthus fragrans 'Sijigui'[J]. Acta Hortic Sin, 2017, 44(6):1145-1156.
[17] 付建新, 张超, 王艺光, 等.桂花组织基因表达中荧光定量PCR内参基因的筛选[J].浙江农林大学学报, 2016, 33(5):727-733.

FU Jianxin, ZHANG Chao, WANG Yiguang, et al. Reference gene selection for quantitative real-time polymerase chain reaction (qRT-PCR) normalization in the gene expression of sweet osmanthus tissue[J]. J Zhejiang A&F Univ, 2016, 33(5):727-733.
[18]

WEI Libin, MIAO Hongmei, ZHAO Ruihong, et al. Identification and testing of reference genes for sesame gene expression analysis by quantitative real-time PCR[J]. Planta, 2013, 237(3):873-889.
[19]

DIE J V, ROMÁ N B, NADAL S, et al. Evaluation of candidate reference genes for expression studies in Pisum sativum under different experimental conditions[J]. Planta, 2010, 232(1):145-153.
[20] 涂礼莉, 张献龙, 刘迪秋, 等.棉花纤维发育和体细胞胚发生过程中实时定量PCR内对照基因的筛选[J].科学通报, 2007, 52(20):2379-2385.

TU Lili, ZHANG Xianlong, LIU Diqiu, et al. Suitable internal control genes in qRT-PCR normalization in cotton fiber development and somatic embryogenesis[J]. Chin Sci Bull, 2007, 52(20):2379-2385.
[21]

LI Haiyan, DONG Yuanyuan, YANG Jing, et al. De novo transcriptome of safflower and the identification of putative genes for oleosin and the biosynthesis of flavonoids[J]. PLoS One, 2012, 7(2):e30987. doi:10.1371/journal.pone. 0030987.
[22]

GUTIERREZ L, MAURIAT M, GUÉNIN S, et al. The lack of a systematic validation of reference genes:a serious pitfall undervalued in reverse transcription-polymerase chain reaction (RT-PCR) analysis in plants[J]. Plant Biotechnol J, 2008, 6(6):609-618.
[23]

BUSTIN S A. Quantification of mRNA using real-time reverse transcription PCR (RT-PCR):trends and problems[J]. J Mol Endocrinol, 2002, 29(1):23-39.
[24] 尹静, 任春林, 詹亚光, 等.可用于实时荧光定量PCR标准化的白桦内参基因[J].植物生理学通讯, 2010, 46(10):1061-1066.

YIN Jing, REN Chunlin, ZHAN Yaguang, et al. Selection of internal control genes for real-time RT-PCR normalization in white birch (Betula platyphylla Suk.)[J]. Plant Physiol Commun, 2010, 46(10):1061-1066.
[25]

van GUILDER H D, VRANA K, FREEMAN W A. Twenty-five years of quantitative PCR for gene expression analysis[J]. BioTechniques, 2008, 44(5):619-626.
[26] 杨晶, 卢玉彬, 迟孟涵, 等.红花种子不同发育时期内参基因表达稳定性分析[J].中草药, 2017, 48(9):1845-1850.

YANG Jing, LU Yubin, CHI Menghan, et al. Analysis on stability of reference genes in different developmental stages of seeds from Carthamus tinctorius[J]. Chin Tradit Herbal Med, 2017, 48(9):1845-1850.
[27]

MOURA J C, ARAÚJO P, BRITO M S, et al. Validation of reference genes from Eucalyptus spp. under different stress conditions[J]. BMC Res Notes, 2012, 5:634.
[28] 胡瑞波.大豆FT/TFL1基因克隆、表达模式及功能分析[D].北京: 中国农业科学院, 2009.

HU Ruibo. Molecular Cloning, Expression Profiles and Functional Analysis of FT/TFL1 Genes in Soybean (Glycine max)[D]. Beijing: Chinese Academy of Agricultural Sciences, 2009.
[29] 李琼琼.大豆NCED1基因及其启动子的克隆、表达载体的构建及植物转化[D].长春: 吉林农业大学, 2012.

LI Qiongqiong. Cloning, Construction of Plant Expression Vector and Transformation of GmNCED1 Gene and Promoter from Glycine max[D]. Changchun: Jilin Agricultural University, 2012.
[30] 吝月爱.玉米在非生物胁迫和激素处理条件下实时荧光定量PCR内参基因的选择[D].成都: 四川农业大学, 2012.

LIN Yueai. Reference Gene Selection for Quantitative Real-time PCR in Maize Treated with Abiotic Stresses and Hormones[D]. Chengdu: Sichuan Agricultural University, 2012.
[31] 宋雄.欧芹不同逆境条件下适宜内参基因的筛选[D].南京: 南京农业大学, 2016.

SONG Xiong. Screening Suitable Reference Genes under Different Stresss Conditions in Parsley[D]. Nanjing: Nanjing Agricultural University, 2016.