Chromosomal rearrangements (CRs) play important roles in karyotype diversity and speciation. While many CR breakpoints have been characterized at the sequence level in yeast, insects, and primates, little is known about the structure of evolutionary CR breakpoints in plant genomes, which are much more dynamic in genome size and sequence organization. Here, we report identification of breakpoint...

We report mapping of translocation breakpoints using a microarray. We used complex RNA to compare normal hexaploid wheat (17 000Mb genome) to a ditelosomic stock missing the short arm of chromosome 1B (1BS) and wheat-rye translocations that replace portions of 1BS with rye 1RS. Transcripts detected by a probe set can come from all three Triticeae genomes in ABD hexaploid wheat, and sequences of...

and Meinel, 1994; Moreno-Sevilla et al., 1995a; McKendry et al., 1996). The 1RS.1BL translocation is one of the Most experiments on 1RS translocations in wheat (Triticum aestimost frequently used alien introgressions in wheat vum L.) cannot separate the effects of introgressions of rye (Secale breeding programs throughout the world (Braun et al., cereale L.) chromosome arm from the absence of c...

the short arm of rye 1r chromosome (1rs) carries genes for resistance to diseases and pests. the presence of the 1rs arm also enhance adaptation, stress tolerance and yield potential of bread wheat. in the present study 17 bread wheat cultivars were screened to identify 1bl.1rs translocation (t1bl.1rs) by isoelectric focusing, c-banding and fluorescence in situ hybridization (fish) methods. iso...

rived from Amigo have been recognized as the most favorable for yield (Lukaszewski, 1990; William and The confounding effect of wheat (Triticum aestivum L.) genetic Mujeeb-Kazi, 1993). T1BL·1RS resulted in higher grain background has been addressed as the major factor in inconsistent yield, kernel weight, and above-ground biomass (Carver agronomic performances of 1RS translocation. The objectiv...

This article is the first in a series of manuscripts to evaluate nutritional rehabilitation in chickens as a model to study interventions in children malnutrition (Part 1: Performance, Bone Mineralization, and Intestinal Morphometric Analysis). Inclusion of rye in poultry diets induces a nutritional deficit that leads to increased bacterial translocation, intestinal viscosity, and decreased bon...

Two independent trials were conducted to evaluate the utilization of rye as energy source on bacterial translocation (BT), intestinal viscosity, gut integrity, gut microbiota composition, and bone mineralization, when compared with a traditional cereal (corn) in broiler chickens. In each experiment, day-of-hatch, broiler chickens were randomly assigned to either a corn or a rye diet (n = 20 chi...

Wheat is globally one of the most important crops. With the current human population growth rate, there is an increasing need to raise wheat productivity by means of plant breeding, along with development of more efficient and sustainable agricultural systems. Damage by pathogens and pests, in combination with adverse climate effects, need to be counteracted by incorporating new germplasm that ...

A wheat germplasm line 13-2-2 with resistance to powdery mildew was isolated; this line was derived from common wheat cv. W770B and rye, Secale cereale L. (2n = 2x = 14, RR). The line was characterized based on cytological, genomic in situ hybridization (GISH), sequence-characterized amplified region (SCAR), and simple sequence repeat (SSR) analyses. The mitotic and meiotic investigations showe...

Using Roche/454 technology, we sequenced the chloroplast genomes of 12 Triticeae species, including bread wheat, barley and rye, as well as the diploid progenitors and relatives of bread wheat Triticum urartu, Aegilops speltoides and Ae. tauschii. Two wild tetraploid taxa, Ae. cylindrica and Ae. geniculata, were also included. Additionally, we incorporated wild Einkorn wheat Triticum boeoticum ...