Natura - nature Mundus - physical world;material world Naturalia Biota Domain Eukaryota - eukaryotes Kingdom Chromista - chromists Subkingdom Chromobiota Infrakingdom Heterokonta - heterokonts Phylum Oomycota Class Oomycetes - oomycetes Order Saprolegniales Family Saprolegniaceae Genus Achlya H,N,P,R,B,L; Ref:P.M. Kirk et al., 2001:570; Count:3s Achlya ambisexualis Raper, 1939 H,N,P,R,B,L; Ref:K. Shalchian-Tabrizi et al., 2006:1838 (informal mention) Achlya bisexualis Coker H,N,P,R,B,L Achlya flagellata Coker, 1923 H,N,P,R,B,L; Ref:G.W. Beakes, 1989:329 (informal mention ...

The water mold Achlya ambisexualis reproduces asexually by the formation of zoospores produced in sporangia. The differentiation of vegetative hyphae to sporangia involves a series of morphologic and biochemical changes. Thus far, very little is known about the regulation of sporogenesis in this organism. Using DNA-DNA and DNA-RNA hybridizations, we investigated the presence of DNA sequences homologous to the yeast RAS gene in A. ambisexualis. A 1.8-kilobase (kb) HindIII fragment containing the complete RASsc1 gene specifically hybridized to BamHI, PstI, and SalI digested A. ambisexualis DNA. RNA blot analysis revealed the presence of a detectable level of RNA transcript (1.3 kb) that hybridizes to RASsc1, only in differentiating mycelia. In addition, the 35S-labeled polypeptide profile of sporulating hyphae differs from that of vegetative hyphae. The selective transcription of 1.3-kb RNA during sporangiogenesis indicates that it may play some significant role in the asexual sporulation in A. ...

DNA sequencing technology is becoming more accessible to a variety of researchers as costs continue to decline. As researchers begin to sequence novel transcriptomes, most of these datasets lack a reference genome and will have to rely on de novo assemblers. Making comparisons across assemblies can be difficult: each program has its strengths and weaknesses and no tool exists to comparatively evaluate these datasets. Now, a team led by researchers at the University of Rhode Island have developed software in R, called Sequence Comparative Analysis using Networks (SCAN) to perform statistical comparisons between distinct assemblies. SCAN uses a reference dataset to identify the most accurate de novo assembly and the good transcripts in the users data. They tested SCAN on 3 publicly available transcriptomes, each assembled using 3 assembly programs. Moreover, they sequenced the transcriptome of the oomycete Achlya hypogyna and compared de novo assemblies from Velvet, ABySS, and the CLC Genomics

DataMed is a prototype biomedical data search engine. Its goal is to discover data sets across data repositories or data aggregators. In the future it will allow searching outside these boundaries. DataMed supports the NIH-endorsed FAIR principles of Findability, Accessibility, Interoperability and Reusability of datasets with current functionality assisting in finding datasets and providing access information about them.

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