Mating-type region


Mating-type region

The mating-type region is a specialized region in the genomes of some yeast and other fungi, usually organized into heterochromatin and possessing unique histone methylation patterns. The genes in this region regulate the mating type of the organism and therefore determine key events in its life cycle, such as whether it will reproduce sexually or asexually. In fission yeast such as S. pombe, the formation and maintenance of the heterochromatin organization is regulated by RNA-induced transcriptional silencing, a form of RNA interference responsible for genomic maintenance in many organisms.[1] Mating type regions have also been well studied in budding yeast S. cerevisiae and in the fungus Neurospora crassa.[2]

See also

References

  1. ^ Noma K, Sugiyama T, Cam H, Verdel A, Zofall M, Jia S, Moazed D, Grewal S (2004). "RITS acts in cis to promote RNA interference-mediated transcriptional and post-transcriptional silencing". Nat Genet 36 (11): 1174-80. doi:10.1038/ng1452 PMID 15475954
  2. ^ Staben C, Yanofsky C. (1990). Neurospora crassa a mating-type region. Proc Natl Acad Sci USA 87(13):4917-21. PMID 2142304



Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Mating type — Mating types occur in eukaryotes that undergo sexual reproduction via isogamy. Since the gametes of different mating types look alike, they are often referred to by numbers, letters, or simply + and instead of male and female. Mating… …   Wikipedia

  • Mating of yeast — The yeast Saccharomyces cerevisiae is a simple single celled eukaryote with both a diploid and haploid mode of existence. The mating of yeast only occurs between haploids, which can be either the a or α (alpha) mating type and thus display simple …   Wikipedia

  • RNA interference — (RNAi) is a mechanism that inhibits gene expression at the stage of translation or by hindering the transcription of specific genes. RNAi targets include RNA from viruses and transposons (significant for some forms of innate immune response), and …   Wikipedia

  • RNA-induced transcriptional silencing — (RITS) is a form of RNA interference by which short RNA molecules such as small interfering RNA (siRNA) trigger the downregulation of transcription of a particular gene or genomic region. This is usually accomplished by posttranslational… …   Wikipedia

  • РНК-интерференция — Доставка малых РНК, содержащих шпильки, при помощи вектора на основе лентивируса и механизм РНК интерференции в клетках млекопитающих РНК интерференция (а …   Википедия

  • Sudden oak death — acutie Oak Decline 240px Canker on an infected oak Scientific classification Domain: Eukaryota Kingdom: Chromalveolata …   Wikipedia

  • List of genetics-related topics — This is a list of terms related to genetics. NOTOC # * 3 end * 5 end A * Acentric chromosome * Achondroplasia * Active site * Adam s Curse * Adaptation * Adenine * Adenosine * Adenovirus * Adenosine diphosphate (ADP) * Ala * Alagille syndrome *… …   Wikipedia

  • List of genetic engineering topics — NOTOC # 3 end 5 end A Acentric chromosome Achondroplasia Active site Adam s Curse Adaptation Adenine Adenosine Adenosine diphosphate Adenovirus ADP Ala Alagille syndrome Albino Alcoholism Alkylating agent Allele Allele frequency Alleles… …   Wikipedia

  • Candida albicans — Scientific classification Kingdom: Fungi Phylum …   Wikipedia

  • ONTOGENÈSE VÉGÉTALE — L’ontogenèse ( 塚﨎益﨎靖晴靖: genèse; 礼諸精礼靖: être) recouvre l’ensemble des processus de développement des êtres vivants, jalonnés, à partir de la fécondation, par l’embryogenèse, l’acquisition de l’état adulte, la sénescence, puis la mort et/ou la… …   Encyclopédie Universelle