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Floral transcriptomes reveal gene networks in pineapple floral growth and fruit development

文献类型： 外文期刊

作者： Wang, Lulu 1 ; Li, Yi 1 ; Jin, Xingyue 1 ; Liu, Liping 1 ; Dai, Xiaozhuan 1 ; Liu, Yanhui 1 ; Zhao, Lihua 1 ; Zheng, Ping 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Key Lab Genet Breeding & Multiple Utilizat Crops, Fujian Prov Key Lab Haixia Appl Plant Syst Biol, Minist Educ,Coll Life Sci,Coll Hort, Fuzhou 350002, Peoples R China

2.Guangxi Acad Agr Sci, Nanning Invest Stn South Subtrop Fruit Trees, Hort Res Inst, Minist Agr, Nanning 530007, Peoples R China

3.Guangxi Univ, Coll Agr, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangxi Key Lab Sugarcane Biol, Nanning 530004, Peoples R China

期刊名称：COMMUNICATIONS BIOLOGY （ 影响因子：6.268； 五年影响因子：6.268 ）

ISSN：

年卷期： 2020 年 3 卷 1 期

页码：

收录情况： SCI

摘要： Wang et al. perform RNA-Seq on pineapple floral samples and also use previously published RNA-Seq datasets to generate tissue- and stage-specific transcriptomic profiles. The authors use weighted gene co-expression network analysis to identify gene networks, bringing insight to underlying pineapple reproductive organ growth. Proper flower development is essential for sexual reproductive success and the setting of fruits and seeds. The availability of a high quality genome sequence for pineapple makes it an excellent model for studying fruit and floral organ development. In this study, we sequenced 27 different pineapple floral samples and integrated nine published RNA-seq datasets to generate tissue- and stage-specific transcriptomic profiles. Pairwise comparisons and weighted gene co-expression network analysis successfully identified ovule-, stamen-, petal- and fruit-specific modules as well as hub genes involved in ovule, fruit and petal development. In situ hybridization confirmed the enriched expression of six genes in developing ovules and stamens. Mutant characterization and complementation analysis revealed the important role of the subtilase geneAcSBT1.8in petal development. This work provides an important genomic resource for functional analysis of pineapple floral organ growth and fruit development and sheds light on molecular networks underlying pineapple reproductive organ growth.

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