首页|油茶卵形家族蛋白的鉴定与分析

油茶卵形家族蛋白的鉴定与分析

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卵形家族蛋白(OFP)是一类植物特有的转录因子,其部分家族成员对果实形状具有重要影响,对该家族的研究有助于提高油茶(Camellia oleifera)果高与产量。基于油茶基因组、转录组及单细胞转录组数据,利用生物信息学的方法对其OFP进行鉴定与分析。油茶基因组中含有 37个CoOFP基因;系统进化树分析表明,CoOFP可以分为 4个亚家族、7个分支,其中,Ⅱ-1、Ⅲ-1、Ⅳ-1分支分别含有 3、4、11个CoOFP,分别与 BnOFP13_2、SlOFP20、OVATE同源。基因表达分析表明,Ⅲ-1分支的 CoOFP26在花芽、柱头、雄蕊、花药、种子、果皮及根中有表达,在成熟子房的胎座(亚群 4与 11)中也有表达;Ⅳ-1分支的CoOFP23与CoOFP29主要在花芽、柱头、雄蕊、花药、种子及果皮中表达,CoOFP23在成熟子房的心皮内层(亚群 1与 8)有表达,CoOFP29在亚群 1中有表达。CoOFP26可能参与调控油茶胎座及果皮基—顶轴方向的细胞数量,CoOFP23与 CoOFP29可能参与调控心皮及果皮基—顶轴方向的细胞数量,CoOFP23、CoOFP26及CoOFP29可能是调控油茶果高的关键基因。
Identification and analysis of ovate family proteins in Camellia oleifera
Ovate family proteins(OFPs),part of which are related with fruit shape,are a class of plant-specific transcription factors.Investigation of OFPs is helpful to promote the fruit height and yield of Camellia oleifera.Based on the date of genome,transcriptome and single-cell RNA-seq data,identification and analysis of OFPs were conducted in C.oleifera using bioinformatic approaches.A total of 37 CoOFP genes were identified in the genome data of C.oleifera,and the 37 CoOFP proteins were divided into 4 subfamilies and 7 groups according to the topology of phylogenetic tree.Group Ⅱ-1,Ⅲ-1 and Ⅳ-1 contained 3,4 and 11 CoOFP proteins,which were homologues of BnOFP13_2,SlOFP20 and OVATE,respectively.The results of transcriptome expression profiling showed that CoOFP26 of group Ⅲ-1 expressed in flower bud,pistil,stamen,anther,seed,pericarp and root.CoOFP26 were also detected in placenta(clusters 4 and 11)of mature ovaries.Both of CoOFP23 and CoOFP29 of group Ⅳ-1 mainly expressed in flower bud,pistil,stamen,anther,seed and pericarp.CoOFP23 was detected in carpel inner layer(clusters 1 and 8)of mature ovaries.CoOFP29 was also detected in cluster 1.CoOFP26 may be involved in regulation of cell proliferation of placenta and pericarp along proximo-distal axis.Both of CoOFP23 and CoOFP29 may be involved in regulation of cell proliferation of carpel and pericarp along proximo-distal axis.CoOFP23,CoOFP26 and CoOFP29 may be the key genes for regulating the fruit height of C.oleifera.

Camellia oleiferaOFPfruit heightovaryexpression

赵松子、马莉燕、赵攀

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江西省林业科学院,南昌 330013

油茶 OFP 果高 子房 表达

2024

四川林业科技
四川省林学会 四川省林业科学研究院

四川林业科技

影响因子:0.452
ISSN:1003-5508
年,卷(期):2024.45(6)