Zhang Zhen, Chen Nannan, Zhang Zheng, Shi Gangrong
College of Life Sciences, Huaibei Normal University, Huaibei 235000, China.
Plants (Basel). 2022 Mar 16;11(6):786. doi: 10.3390/plants11060786.
Zinc/iron-regulated transporter-like protein (ZIP) family genes play crucial roles in metal uptake and transport in plants. However, little is known about their functions in peanut. Here, genome-wide analysis identified 30 peanut genes that were divided into four classes. Most s experienced whole-genome or segmental duplication. AhZIP proteins harbored 3-8 transmembrane domains and a typical ZIP domain, showing considerable homology with BbZIP from . Clustered s generally share similar gene/protein structures; however, unique features were found in , , and . RNA-seq data revealed that /, / and / were highly and preferentially expressed in roots, nodule and reproductive tissues. RT-qPCR analysis indicated that transcriptional responses of s to Fe/Zn deficiency are cultivar dependent. The expressions of , and were closely related to Fe uptake and translocation. and expression were significantly correlated with Zn accumulation. The expression of , , , and was associated with Mn uptake and translocation. The results confirmed that genes play crucial roles in the uptake and transport of Fe, Zn and Mn in peanut, providing clues to further functionally characterize genes in the future.
锌/铁调控转运蛋白样蛋白(ZIP)家族基因在植物的金属吸收和转运中起着关键作用。然而,它们在花生中的功能却鲜为人知。在此,全基因组分析鉴定出30个花生基因,这些基因被分为四类。大多数基因经历了全基因组或片段重复。AhZIP蛋白含有3 - 8个跨膜结构域和一个典型的ZIP结构域,与来自[具体物种]的BbZIP具有相当高的同源性。聚类的基因通常具有相似的基因/蛋白质结构;然而,在[具体基因名称1]、[具体基因名称2]、[具体基因名称3]和[具体基因名称4]中发现了独特的特征。RNA测序数据显示,[基因名称1]/[基因名称2]、[基因名称3]/[基因名称4]和[基因名称5]/[基因名称6]在根、根瘤和生殖组织中高度且优先表达。RT-qPCR分析表明,基因对铁/锌缺乏的转录反应具有品种依赖性。[基因名称7]、[基因名称8]和[基因名称9]的表达与铁的吸收和转运密切相关。[基因名称10]和[基因名称11]的表达与锌的积累显著相关。[基因名称12]、[基因名称13]、[基因名称14]、[基因名称15]和[基因名称16]的表达与锰的吸收和转运有关。结果证实,ZIP基因在花生中铁、锌和锰的吸收和转运中起着关键作用,为未来进一步对ZIP基因进行功能表征提供了线索。