Related Experiment Video
Updated: Mar 17, 2026
12:15
In Situ Hybridization for the Precise Localization of Transcripts in Plants
Published on: November 23, 2011
52.5K
IGDD: a database of intronless genes in dicots
Hanwei Yan1,2, Xiaogang Dai1, Kai Feng1
1Key Laboratory of Forest Genetics & Biotechnology, Nanjing Forestry University, Nanjing, China.
BMC Bioinformatics
|July 29, 2016
Summary
Intronless genes, common in prokaryotes, are explored in dicot plants using the new Intronless Genes Database in Dicots (IGDD). This resource aids in understanding their function and distribution in eukaryotes.
Area of Science:
- Genomics
- Bioinformatics
Background:
- Intronless genes are prevalent in prokaryotes.
- Systematic identification and annotation are crucial for understanding intronless genes in eukaryotes.
Purpose of the Study:
- To introduce the Intronless Genes Database in Dicots (IGDD).
- To provide a platform for exploring intronless genes in five dicot plants.
Main Methods:
- Construction of the IGDD with data from five well-annotated plants.
- Utilization of a user-friendly web interface with visualization tools.
- Inclusion of advanced search and local BLAST functionalities.
Main Results:
- The IGDD contains structural and functional annotations, homolog groups, syntenic relationships, expression patterns, and statistical characteristics of intronless genes.
- The database offers a highly visual display of data.
- The IGDD is accessible at http://bio.njfu.edu.cn/igdd/.
Conclusions:
- The IGDD serves as a comprehensive and up-to-date platform for intronless gene research in dicot plants.
Related Concept Videos
03:40Introduction to Seed Plants
71.2K
Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.
71.2K
01:29Non-nuclear Inheritance
23.4K
Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm—such as chloroplasts and mitochondria—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
23.4K
01:43Incomplete Dominance
32.1K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
32.1K
02:32Exon Recombination
4.3K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
4.3K
02:07Organization of Genes
74.1K
Overview
74.1K
02:33Seed Structure and Early Development of the Sporophyte
31.6K
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
31.6K