Glycinebetaine-deficient inbreds of Zea mays do not exhibit a general deficiency of nitrogenous solutes; the total free amino acid levels of betaine-deficient lines are not significantly less than those of inbreds which exhibit >100-fold higher betaine levels. Betaine-deficient inbreds are characterized by extremely low betaine: total free amino acid ratios (<0.0015). Highly significant correla...

We noted previously that random genetic drift leads inevitably to the loss of alleles within populations and to the fixation of alternate alleles by different populations. These conclusions extend logically to quantitative characters. We expect the within-population variance of small populations to decline and the mean phenotypes of isolated populations to diverge gradually. There are some inte...

Abstract This research was aimed to evaluate 7 local inbreds of rice from Aceh for their tolerance against drought stress through detection in early development. The study employed a complet ely Randomized Design (CRD) Factorial comprising 2 factors: 1) inbred Unsyiah Cakep (G1), Seumeulu (G2) and Mantap (G3), Sigunca (G4), Sigupai (G5), Cot Bada (G6), Rajasa (G7) (2) different concentrations P...

Head smut (HS) is one of the most devastating diseases maize in spring production regions China. Quantitative trait loci (QTL) for HS resistance were identified this study to provide theoretical and applied tools breeding maize. QTL associated with a F2:3 population derived from T32 (highly resistant genotype) × HC susceptible cross. Analysis each three environments collective analysis across a...

to identifying of the high yielding wheat lines with optimal characteristics and to determine the traits which could be used as the selection index for increasing of grain yield, 40 recombinant inbred lines derived from a cross between norstar and zagros cultivars were evaluated in a randomized complete block design with three replications. the measured characters consisted of peduncle weight, ...

since crosses of lines with suitable genetic distance produce excellent hybrids, the identification of genetic diversity between zea mays l. inbred lines in hybrid maize breeding programs has a high priority. a total of 27 inbred lines plus b73 and mo17 (sc704 parents) were evaluated by 15 inter-simple sequence repeat (issr) primers. inbreds were selected randomly from inbred lines from the agr...

introduction the mating of related individuals produces an inbred offspring and leads to an increased homozygosity in the progeny, genetic variance decrease within families and increase between families. the ration of homozygosity for individuals was calculated by inbreeding coefficient. inbred individuals may carry two alleles at a locus that are replicated from one gene in the previous genera...

traits such as soluble solids content, fruit acidity, ph, fruit lycopene concentration, fruit beta-caroteneconcentration, and fruit xanthophyll concentration are very important to the tomato industry. in this study,quantitative trait loci (qtl) analysis of these traits was performed using a recombinant inbred line (ril)population derived from a cross between a tomato (lycopersiconesculentum mil...

This work is a systematic study of discrete Markov chains that are used to describe the evolution of a two-types population. Motivated by results valid for the well-known Moran (M) and Wright-Fisher (WF) processes, we define a general class of Markov chains models which we term the Kimura class. It comprises the majority of the models used in population genetics, and we show that many well-know...

The study of isolated, inbred populations is a promising approach for the identification of disease susceptibility genes. One of the main challenges for geneticists and epidemiologist is to deal with the very complex genealogies of such populations. We present ongoing research on using a visual analytics based approach for the identification of family clustered diseases, risk factors and herita...