塔贝布亚 (Tabebuia rosea) (Bignoniaceae) 的完整的叶绿体基因组
Guihong Xu1, Wei Zeng1, Xiaofeng Zhang1
1Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen, China.
Mitochondrial DNA. Part B, Resources
|October 8, 2024
概括
测序了Tabebuia rosea的完整的叶绿体基因组,揭示了它的结构和基因含量. 遗传学分析将Tabebuia rosea置于Bignoniaceae家族内,澄清了进化关系.
科学领域:
- 植物基因组学 植物基因组学
- 分子进化是分子进化的过程.
- 生物信息学是一种生物信息学.
背景情况:
- 塔贝布亚 (Tabebuia rosea) 是一种具有装饰性,生态性和药用价值的重要木质植物.
- 了解它的叶绿体基因组对于进化和遗传学研究至关重要.
- 比尼尼亚科家族包括各种各样的物种,具有复杂的进化历史.
研究的目的:
- 为了重建和注释Tabebuia rosea.的完整的叶绿体基因组.
- 为了分析T. rosea化物基因组的结构特征和基因含量.
- 为了调查T. rosea在Bignoniaceae家族中的遗传学位置.
主要方法:
- 通过Illumina技术对整个叶绿体基因组进行测序.
- 用于基因组组装,注释和基因识别的生物信息分析.
- 基于可用的叶绿体基因组序列的植物遗传学分析.
主要成果:
- 成功重建了T. rosea的完整叶绿体基因组,测量158,919bp,GC含量为38.21%.
- 该基因组包含132个基因:87个蛋白质编码,37个tRNA和8个rRNA基因.
- 遗传学分析将T. rosea与T. nodosa和H. chrysanthus聚集在一起,为Bignoniaceae进化提供了洞察力.
结论:
- 详细描述T. rosea化物基因组提供了一个有价值的基因组资源.
- 这项研究阐明了T. rosea在Bignoniaceae家族中的进化关系.
- 这些发现有助于更好地了解开花植物中叶绿体基因组的演变.
相关概念视频
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.0K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
12.0K
Export of Mitochondrial and Chloroplast Genes
3.6K
A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred...
3.6K
Asexual Reproduction
30.4K
Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
30.4K
Genome Size and the Evolution of New Genes
7.9K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
7.9K


