Transcription factors play a fundamental role in plants by orchestrating temporal and spatial gene expression in response to environmental stimuli. Several R2R3-MYB genes of the Arabidopsis subgroup 4 (Sg4) share a C-terminal EAR motif signature recently linked to stress response in angiosperm plants. It is reported here that nearly all Sg4 MYB genes in the conifer trees Picea glauca (white spr...

The alterations to the expressions of metal transporter genes can induce ion uptake maintain cell homeostasis when concentrations are low. Metallothioneins (MTs) a class low molecular mass (4-8 kDa), cysteine (Cys)-rich proteins that bind metals via thiol groups their Cys residues. Studies on MT gene in higher plants, such as conifers, limited. White spruce (Picea glauca) is North American nati...

The southern region of the Paria Peninsula shows a high malaria incidence. This work relates the abundances of cyclopoid species and the malaria vector Anopheles aquasalis to certain abiotic parameters and vegetation features. Samples were collected over a 4-month period in several habitats, including marsh, irrigation channel, lagoon, and mangrove swamp during the wet season and the wet-dry tr...

Interspecific amphihaploid and amphidiploid hybrids between Nicotiana glauca Grah. (2n = 24) and N. tabacum L. (2n = 48) cultivars BY 103 and K 326 were analysed. F1 amphihaploids (2n = 36) were viable and completely self- and cross-sterile, and mostly univalents were present during meiosis (with pairing range from 0 to 5). In some meiocytes, meiotic irregularities were observed, such as sporad...

Ngrol genes (NgrolB, NgrolC, NgORF13, and NgORF14) that are similar in sequence to genes in the left transferred DNA (TL-DNA) of Agrobacterium rhizogenes have been found in the genome of untransformed plants of Nicotiana glauca. It has been suggested that a bacterial infection resulted in transformation of Ngrol genes early in the evolution of the genus Nicotiana. Although the corresponding fou...

The ecological causation hypothesis for secondary sexual dimorphism was tested in Salix glauca, a dioecious willow shrub. Plants growing in a Colorado Rocky Mountain (USA) krummholz mosaic of mesic and xeric patches were monitored for four consecutive years. Ecological causation is predicated on unique resource demands associated with sexual function. In S. glauca, seeds have twofold higher N a...

A field experiment was conducted during kharif, 2014 at Tirupati with four foxtail millet varieties (SiA 3088, SiA 3085, SiA 3156 and Srilaxmi) in combination with three nitrogen levels (0, 25, 50 kg N ha -1 ). The results of the experiment revealed that among the four foxtail millet varieties, SiA 3085 recorded the higher grain and straw yield. Application of 50 kg N ha -1 markedly improved th...

Genome-wide identification and expression analysis along the leaf developmental gradient of sigma factor gene family in foxtail millet (Setaria italica)Hongyun Liu, Jinjin Cheng, Siyuan Hui Fan , Bo Wen Zheng Liu