Haustorial Hairs Are Specialized Root Hairs That Support Parasitism in the Facultative Parasitic Plant Phtheirospermum japonicum
Haustorial Hairs Are Specialized Root Hairs That Support Parasitism in the Facultative Parasitic Plant Phtheirospermum japonicum
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吸器毛是支持兼性寄生植物日本竹子寄生的特殊根毛
DOI:
10.1104/pp.16.00223
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发表时间:
2016
期刊:
影响因子:
7.4
通讯作者:
and Ken Shirasu
中科院分区:
文献类型:
--
作者:
Songkui Cui;Takanori Wakatake;Kei Hashimoto;Simon B. Saucet;Kiminori Toyooka;Satoko Yoshida;and Ken Shirasu
The most recent version of the Arabidopsis genome annotation includes 26,207 protein-coding genes and 3,786 pseudogenes. A central goal of The Arabidopsis Information Resource (TAIR) project, as discussed by Berardini et al.(pp. 745–755), is to integrate information from various data sources and present the research community with a comprehensive view of each Arabidopsis gene. Functional annotation is the process of collecting information about and describing a gene’s biological identity—its various aliases, molecular function, biological role (s), subcellular location, and its expression domains within the plant. Controlledvocabulariesareincreasingly used by databases to describe genes and gene products because they facilitate identification of similar genes within an organism or among different organisms. One of TAIR’s specific goals is to associate all Arabidopsis genes with terms developed by the Gene Ontology (GO) Consortium. The GO vocabularies are gaining widespread acceptance as the standard set of terms to use for functional annotation. The terms are organized into three categories that represent molecular functions, biological processes, and subcellular compartment. Molecular function terms describe the biochemical activity performed by a gene product (eg kinase activity). Biological process terms describe the ordered assembly of more than one molecular function (eg flower development). Cellular component terms describe the subcellular compartments of a cell (eg nucleus). The terms are used to describe these separate aspects of a gene product’s biological identity. The vocabularies are developed and maintained by a consortium of model organism databases (MODs). Curators from the MODs work together to ensure that the terms are uniformly agreed upon, clearly defined, and broadly applicable to a wide taxonomic range of species.There are several advantages to using controlled vocabularies for functional annotation of a genome. First, it allows one to perform powerful intraspecific and cross-specific genome queries. Second, one can quantitatively assess the similarity and/or dissimilarity of any two sets of genes or genomes by comparing the distribution of their annotations. Third, one can use the annotated genome of any one species to extrapolate to another genome.