探索延伸酶基因家族:植物和藻类的最新全基因组调查
Sou-Yu Cheng1, Ping-Kuan Chu1, Yi-Jing Chen1
1Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
Journal of experimental botany
|September 28, 2023
概括
延伸蛋白 (EXTs) 是重要的植物细胞壁蛋白. 这项研究对194种物种的EXT类型进行了分类,揭示了新的交联EXT形式及其进化模式.
科学领域:
- 植物生物学 植物生物学
- 分子进化分子进化
- 生物化学 生物化学
背景情况:
- 扩展蛋白 (EXTs) 是富含基的糖蛋白,对植物细胞壁结构和对环境刺激的反应至关重要.
- 特定的重复图案,如Tyr-X-Tyr (YXY),在某些延伸区域促进交叉链接,影响细胞壁机制.
- 了解EXT家族的多样性和演变是解读植物发展和适应的关键.
研究的目的:
- 在广泛的藻类和植物物种中全面分类延伸酶 (EXT) 多样性.
- 识别新型的交联扩展蛋白及其分布.
- 提出植物中EXT基因家族的进化历史.
主要方法:
- 来自194种藻类和植物物种的延伸酶序列的生物信息分析.
- 根据保存的域和动图,将扩展蛋白分为七个不同的子家族.
- 识别交叉链接模式 (YXY,YY) 和基因组织模式.
主要成果:
- 延伸蛋白在植物中很普遍,但在藻类中很少见,在特定的谱系中除外.
- 已经定义了七个EXT子家族:EXT I/II,AGP-EXTs,PERKs,LRX I/II,FH-EXTs,PAC I/II和8CM-EXTs. 这些子家族包括:
- 确定了新的交叉链接扩展素,包括EXT II (YY基因,Solanaceae特异性),PAC II和肝草特异性的8CM-EXTs.
结论:
- 这项研究提供了扩展酶类型的最新分类,完善了我们对它们的结构多样性的理解.
- 发现新的交叉连接扩展蛋白为专门的细胞壁功能提供了洞察力.
- 这些发现支持了植物进化过程中的EXT基因可信的进化轨迹.
关键词:
波亚尔斯 (Poale) 是一个波亚尔斯 (Poale) 系统.进化历史的演化历史在Ser-Pro35 (SP35) 图案中.泰尔-X-泰尔 (YXY) 图案的图案.八个半氨酸图案 (8CM)延伸的延伸是指延伸的延伸.更多相关视频
12:42Fluorescence-microscopy Screening and Next-generation Sequencing: Useful Tools for the Identification of Genes Involved in Organelle Integrity
Published on: April 13, 2012
12.4K
08:09Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
Published on: June 17, 2012
19.7K
相关概念视频
01:28Overview of Algae
39
The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
39
02:50Transgenic Plants
7.3K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.3K
02:54Evolutionary Relationships through Genome Comparisons
5.8K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.8K
02:05Gene Evolution - Fast or Slow?
7.2K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.2K
01:21Green Algae
40
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
40
01:25Cell Signaling in Plants
5.7K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.7K