Fungal Evolution: Mucor and Phycomyces See Double
نویسنده
چکیده
Newly available genome sequences of two Mucoralean fungi, Phycomyces blakesleeanus and Mucor circinelloides, provide evidence for an ancient whole-genome duplication that contributed to the generation of expanded gene families. These fungi have robust responses to light that can be correlated with the expansion of gene networks involved in light sensing and signaling.
منابع مشابه
Functional Analysis of the Phycomyces carRA Gene Encoding the Enzymes Phytoene Synthase and Lycopene Cyclase
Phycomyces carRA gene encodes a protein with two domains. Domain R is characterized by red carR mutants that accumulate lycopene. Domain A is characterized by white carA mutants that do not accumulate significant amounts of carotenoids. The carRA-encoded protein was identified as the lycopene cyclase and phytoene synthase enzyme by sequence homology with other proteins. However, no direct data ...
متن کاملNucleotide composition in protein-coding and non-coding DNA in the zygomycete Phycomyces blakesleeanus.
The zygomycete Phycomyces blakesleeanus has a 30 Mb genome with a 35% content of guanine and cytosine (GC). We determined the GC content in Phycomyces genes and fragments of genes available in public databases, the frequency of nucleotides in each codon position, and the codon usage. We observed a difference of 18% between the GC content of protein-coding and non-coding DNA. This large differen...
متن کاملFungal cryptochrome with DNA repair activity reveals an early stage in cryptochrome evolution.
DASH (Drosophila, Arabidopsis, Synechocystis, Human)-type cryptochromes (cry-DASH) belong to a family of flavoproteins acting as repair enzymes for UV-B-induced DNA lesions (photolyases) or as UV-A/blue light photoreceptors (cryptochromes). They are present in plants, bacteria, various vertebrates, and fungi and were originally considered as sensory photoreceptors because of their incapability ...
متن کاملMutants defective in a Mucor circinelloides dicer-like gene are not compromised in siRNA silencing but display developmental defects.
Dicer proteins are ribonuclease III enzymes that process double stranded RNA precursors into small RNAs categorized as small interfering RNAs (siRNAs) or microRNAs (miRNAs), which suppress gene expression through the RNA silencing mechanism. We have isolated a dicer-like gene (dcl-1) of Mucor circinelloides, the first gene of this family to be identified in zygomycetes. The dcl-1 mRNA occurred ...
متن کاملEvidence on intracellular sites of terminal synthesis of carotenoids in Mucor hiemalis Wehm.
Introduction Available evidence on carotenoid biosynthesis indicates that a general pathway is utilized in all carotenogenic systems, at least in the primary stages (Jensen 1965). The sequential dehydrogenation of the colorless Co precurs~rs to the colored carotenes has been extensively studied in the photosynthe ... t":'"ic----........bacteria (Stanier 1959) and appears to follow the Porter-Li...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Current Biology
دوره 26 شماره
صفحات -
تاریخ انتشار 2016