Abstract In Tunisia, lentil ( Lens culinaris subsp. Medik.) is cultivated in arid and semi-arid areas. Terminal drought heat stresses during the end of cycle causes significant yield losses. Selection short varieties could be best option to escape effect pre cited abiotic factors. ‘krib’ was developed using both modified pedigree bulk methods by INRAT collaboration with ICARDA. It’s a selection...

Abstract Background The overall genetic distribution and divergence of cloned genes among bread wheat varieties that have occurred during the breeding process over past few decades in Ningxia Province, China, are poorly understood. Here, we report diversities 44 important related to grain yield, quality, adaptation resistance 121 86 introduced cultivars advanced lines. Results population struct...

If X is a smooth projective toric variety of dimension n we give explicit conditions on characters of the torus giving an embedding X →֒ Pr that guarantee dimSecX = 2n+ 1. We also give necessary and sufficient conditions for a general point of SecX to lie on a unique secant line when X is embedded into Pr using a complete linear system. For X of dimension 2 and 3 we give formulas for deg SecX in...

The obligate biotrophic lineages of the white blister rusts (Albuginales, Oomycota) are of ancient origin compared to the rather recently evolved downy mildews, and sophisticated mechanisms of biotrophy and a high degree of adaptation diversity are to be expected in these organisms. Speciation in the biotrophic Oomycetes is usually thought to be the consequence of host adaptation or geographic ...

Epigenetic mechanisms are crucial mediators of appropriate plant reactions to adverse environments, but their involvement in long-term adaptation is less clear. Here, we established two rice epimutation accumulation lines by applying drought conditions to 11 successive generations of two rice varieties. We took advantage of recent technical advances to examine the role of DNA methylation variat...

Landraces are key elements of agricultural biodiversity that have long been considered a source of useful traits. Their importance goes beyond subsistence agriculture and the essential need to preserve genetic diversity, because landraces are farmer-developed populations that are often adapted to environmental conditions of significance to tackle environmental concerns. It is therefore increasi...

Plant microRNAs (miRNAs) are a class of small non-coding RNAs which target and regulate the expression of genes involved in several growth, development, and metabolism processes. Recent researches have shown involvement of miRNAs in the regulation of uptake and utilization of nitrogen (N) and phosphorus (P) and more importantly for plant adaptation to N and P limitation conditions by modificati...

Most sweet potato varieties currently grown by farmers are poorly adapted, have low root yields, less nutritive and white fleshed which no beta carotene, a precursor to vitamin “A”. However, among the cheapest richest sources of A; orange were rich in carotene well accepted young children. Hence aim this research project was conducted evaluate adaptability performance improved orange-fleshed on...