Genetic diversity was characterized in 14 isolates of Grapevine fanleaf virus (GFLV) recovered from grapevine (Vitis vinifera). Virions were collected by immunocapture, and a 1557 bp fragment containing part of the viral coat protein gene and part of the untranslated region to its 3' side was amplified by RT-PCR. Sequence variation among isolates was characterized by restriction fragment length...

Campylobacter hyointestinalis is considered as an emerging zoonotic pathogen. We have recently identified two types of cytolethal distending toxin (cdt) gene in C. hyointestinalis and designated them as Chcdt-I and Chcdt-II. In this study, we developed a PCR-restriction fragment length polymorphism (RFLP) assay that can differentiate Chcdt-I from Chcdt-II. When the PCR-RFLP assay was applied to...

In 1998, Allouche, Peyrière, Wen and showed that the Hankel determinant Hn of Thue-Morse sequence over {?1,1} satisfies Hn/2n?1?1(mod2) for all n?1. Inspired by this result, Fu Han introduced apwenian sequences {?1,1}, namely, ±1 whose determinants satisfy n?1, proved with computer assistance a few are apwenian. paper, we obtain an easy to check criterion sequences, which allows us determine fi...

We study $S$-adic shifts generated by sequences of morphisms that are constant-length. call a sequence constant-length torsion-free if any prime divisor one the lengths is infinitely many lengths. show

2 microns DNA isolated from industrial Saccharomyces cerevisiae yeasts exhibited extensive restriction fragment length polymorphisms. At least five 2 microns species were identified from eleven [cir+] strains. Southern hybridization mapped restriction fragment length polymorphisms at STB, a cis-acting locus essential for plasmid partitioning. Some 2 microns variants (e.g., 4110-2 microns and 41...

The O antigen is a polymer with a repeated unit. The chain length in most Escherichia coli strains has a modal value of 10 to 18 O units, but other strains have higher or lower modal values. wzz (cld/rol) mutants have a random chain length distribution, showing that the modal distribution is determined by the Wzz protein. Cloned wzz genes from E. coli strains with short (7 to 16), intermediate ...

illustration, the prime reciprocal of 1/7 is , and the prime reciprocal sequence is considered to be 142857. The period of this sequence is 6. Since the maximum length of the period can be (p-1), this is an example of a maximum-length d-sequence. But a prime reciprocal sequence that is maximum length in one base need not be maximum length in another base. Thus the binary prime reciprocal sequen...

Manning, Bundred, Newton, and Flanagan reported a significant correlation of .29 in a sample of 50 British males between the length of a repeated sequence on the androgen receptor gene and 2D:4D finger-length ratio on the right hand. We report a 2nd failure to replicate this result. Ours was a sample of 182 Australian male twins studied for other purposes, for whom both measures were available....