一种伊朗-图拉尼亚形豆类 (Onobrychis cornuta) 的进化史
Zahra Tayebi1, Mahtab Moghaddam1, Mohammad Mahmoodi2
1Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran, 14115-154.
BMC plant biology
|March 21, 2024
概括
在Onobrychis cornuta种群中的遗传多样性显示出高核酸多样性和四个不同的血统,包括O. elymaitica. 分子年代约会表明起源于早期的普略纪.
科学领域:
- 植物学 植物学
- 遗传学 是一个遗传学.
- 进化生物学 进化生物学
背景情况:
- 伊朗-图拉尼亚地区是全球生物多样性热点,以众多特有物种为特征,包括形成的植物.
- 奥诺布里希斯·科尔努塔 (Onobrychis cornuta) 是该地区亚山和高山植物中的一个关键物种,为其独特的植被结构做出了重大贡献.
研究的目的:
- 为了研究O. elymaitica.的个体,研究Onobrychis cornuta的遗传多样性和种群结构,包括O. elymaitica.个体.
- 为了澄清O. cornuta在伊朗-图拉尼亚植物学地区的遗传学关系和进化历史.
主要方法:
- 采用了核核糖体DNA (nrDNA) 内部转录间隔器 (ITS) 序列.
- 利用了两个非编码的叶绿体DNA (cpDNA) 区域:rpl32-trnL(UAG) 和trnT(UGU) -trnL(UAA).
- 对来自伊朗,土耳其和阿富汗的77个核和59个cpDNA加入进行了网络和遗传学分析.
主要成果:
- 在核 (nDNA) 和叶绿体 (cpDNA) 数据集中观察到出乎意料的高核酸多样性,确定了25个核型和42个单元型.
- 遗传学分析显示O. cornuta不是单一的,在O. elymaitica被包括在内时形成了四个不同的血统,这表明O. elymaitica应该是一个亚种.
- 检测到细胞核异调,可能是由于叶绿体捕获,不完整的血统分类或内进,以及地理差异化.
结论:
- 在伊朗-图拉尼亚地区,Onobrychis cornuta表现出相当大的遗传多样性和复杂的进化模式.
- 这种物种起源于普略纪早期 (大约. 4.8亿年前),并在世和世时期显著多样化.
- 根据遗传学发现,O. elymaitica被提议作为O. cornuta的一个亚种.
更多相关视频
04:41Author Spotlight: Analysis of Ovarian Anatomy in Migratory Insects to Overcome Experimental Challenges
Published on: July 14, 2023
1.4K
07:38Using Flight Mills to Measure Flight Propensity and Performance of Western Corn Rootworm, Diabrotica virgifera virgifera LeConte
Published on: October 29, 2019
6.1K
相关概念视频
02:35What is Evolutionary History?
36.4K
Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
36.4K
02:16Genetics of Speciation
19.2K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.2K
01:54Convergent Evolution
27.7K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
27.7K
02:26Non-vascular Seedless Plants
64.5K
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
64.5K
02:54Evolutionary Relationships through Genome Comparisons
5.7K
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...
5.7K
02:31Synteny and Evolution
3.3K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.3K