Characterization of germline development and identification of genes associated with germline specification in pineapple
文献类型： 外文期刊
作者： Zhao, Lihua 1 ; Liu, Liping 1 ; Liu, Yanhui 1 ; Dou, Xianying 1 ; Cai, Hanyang 1 ; Aslam, Mohammad 1 ; Hou, Zhimin 1 ; Ji 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Ctr Genom & Biotechnol, Coll Life Sci,Fujian Prov Key Lab Haixia Appl Pla, State Key Lab Ecol Pest Control Fujian & Taiwan C, Fuzhou, Peoples R China
2.Swedish Univ Agr Sci, Uppsala BioCtr, Dept Plant Biol, Uppsala, Sweden
3.Linnean Ctr Plant Biol, Uppsala, Sweden
4.Guangxi Univ, Coll Agr, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangxi Key Lab Sugarcane Biol, Nanning, Guangxi, Peoples R China
5.Guangxi Acad Agr Sci, Hort Res Inst, Minist Agr, Nanning Invest Stn South Subtrop Fruit Trees, Nanning, Peoples R China
期刊名称：HORTICULTURE RESEARCH （ 影响因子：6.793； 五年影响因子：6.589 ）
ISSN： 2662-6810
年卷期： 2021 年 8 卷 1 期
页码：
收录情况： SCI
摘要： Understanding germline specification in plants could be advantageous for agricultural applications. In recent decades, substantial efforts have been made to understand germline specification in several plant species, including Arabidopsis, rice, and maize. However, our knowledge of germline specification in many agronomically important plant species remains obscure. Here, we characterized the female germline specification and subsequent female gametophyte development in pineapple using callose staining, cytological, and whole-mount immunolocalization analyses. We also determined the male germline specification and gametophyte developmental timeline and observed male meiotic behavior using chromosome spreading assays. Furthermore, we identified 229 genes that are preferentially expressed at the megaspore mother cell (MMC) stage during ovule development and 478 genes that are preferentially expressed at the pollen mother cell (PMC) stage of anther development using comparative transcriptomic analysis. The biological functions, associated regulatory pathways and expression patterns of these genes were also analyzed. Our study provides a convenient cytological reference for exploring pineapple germline development and a molecular basis for the future functional analysis of germline specification in related plant species.
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