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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (9): 36-43.doi: 10.11707/j.1001-7488.20140905

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Sequencing of Transcriptome Relevant to Flowering and Analysis of Floral-Related Genes Expression in Camellia oleifera

Hu Yulin, Yao Xiaohua, Ren Huadong, Wang Kailiang, Lin Ping   

  1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry Fuyang 311400
  • Received:2013-12-05 Revised:2014-02-26 Online:2014-09-25 Published:2014-09-30
  • Contact: 姚小华

Abstract:

In this study, total RNA of stem apex and bud in Camellia oleifera was sequenced and its flowering relation genes were analysis. The results showed that transcriptome sequencing revealed a total of 28 448 847 reads, 5 742 023 480 bp data, and 46.52% GC content in whole genome. The Unigenes numbers with more than 200 bp were 94 476, and the Unigenes were very similar with grape's. The N50 length was 806 bp, and 1 kbp or longer Unigenes were 12 643, accounting for 13.38% of total Unigenes database. The annotation number of Unigenes function in each database was:9 095 Unigenes in COG, 27 201 Unigenes in GO, 6 431 Unigenes in KEGG, 24 534 Unigenes in Swissprot, 36 393 Unigenes in TrEMBL, 36 400 Unigenes in Nr, and 30 858 Unigenes in Nt. The expression profile showed that FLC, FCA, FT expression were lower than AP1, AP2, PI expression in the stem apex. The FT gene (ID:Unigene60063) may be a key gene for Camellia flower, and PI genes (ID:Unigene56059) are closely related with the stamen development.

Key words: Camellia oleifera, transcriptome, high-throughout sequencing, flowering genes, flowering way

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