Bioavailability and Bioactivity of Selenium from Wheat (Triticum aestivum), Maize (Zea mays), and Pearl Millet (Pennisetum glaucum), in Selenium-Deficient Rats
Abstract
We investigated nucleotide polymorphism in the Adh1 locus of pearl millet (Pennisetum glaucum) (Poaceae) by determining the DNA sequence of 20 alleles from 10 individuals. The individuals were sampled from throughout pearl millet's indigenous range and represent both wild and cultivated accessions. Our results indicated that there is little nucleotide polymorphism in the Adh1 locus. Estimates of per site nucleotide polymorphism did not differ significantly between cultivated and wild millet accessions. We compared nucleotide polymorphism in pearl millet Adh1 with nucleotide polymorphism in maize (Zea mays) Adh1 and conclude that the maize Adh1 sample is more polymorphic. Increased polymorphism in maize Adh1 may be attributable, in part, to faster substitution rates in the maize lineage. Analysis suggests that substitution rates in the maize Adh1 lineage are approximately 1.7 times faster than substitution rates in the millet Adh1 lineage.
Abstract
A new distribution map is provided for Aphelenchoides arachidis Bos Nematoda: Aphelenchida: Aphelenchoididae Hosts: Groundnut (Arachis hypogaea); also maize (Zea mays), Sorghum bicolor, pearl millet (Pennisetum glaucum), sugarcane (Saccharum officinarum) and rice (Oryza sativa). Information is given on the geographical distribution in AFRICA, Nigeria.
A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).
Nucleotide polymorphism in the Adh1 locus of pearl millet (Pennisetum glaucum) (Poaceae).