Bacterial Leaf Blight (BLB) is a major disease of rice in tropical monsoon and sub tropical rice growing regions of the world. BLB substantially reduces the yield of the crop affecting food security. Rice is the second most important food crop, after wheat, in the world; hence the disease must be effectively controlled. As chemical control is impractical due to unavailability of specific bacter...

Abstract The threats to agrobiodiversity ultimately affect our future food security. Countries bonded national or international biodiversity conservation legislation should conserve and sustainably use their agrobiodiversity. Landraces are a key element of which is largely endangered due lack systematic conservation, partially obstacles in developing inventories may be assigned the difficulties...

The genetic differences in the landraces are very important for plant breeding. aim of this study was to determine chlorophyll, ash and N contents their relations with grain yield Turkish bread wheat landraces. There were significant (GY), content flag leaf at anthesis (AFLAC), spike (ASAC), maturity (MFLAC), (GAC), chlorophyll (ACC), early milk (EMCC), late (LMCC), dough (EDCC), (FLN) (SN). po...

Latin America is the center of domestication and diversity maize, second most cultivated crop worldwide. In this region, maize landraces are fundamental for food security, livelihoods, culture. Nevertheless, genetic erosion (i.e., loss variation in a crop) threatens continued cultivation situ conservation landrace that crucial to climate change adaptation diverse uses maize. We provide an overv...

Increased interest toward traditional tomato varieties is fueled by the need to rescue desirable organoleptic traits and to improve the quality of fresh and processed tomatoes in the market. In addition, the phenotypic and genetic variation preserved in tomato landraces represents a means to understand the genetic basis of traits related to health and organoleptic aspects and improve them in mo...

Understanding the effects of actions undertaken by human societies on crop evolution processes is a major challenge for the conservation of genetic resources. This study investigated the mechanisms whereby social boundaries associated with patterns of ethnolinguistic diversity have influenced the on-farm distribution of sorghum diversity. Social boundaries limit the diffusion of planting materi...

During the last 90 years, the breeding of rice has delivered cultivars with improved agronomic and economic characteristics. Crossing of different lines and successive artificial selection of progeny based on their phenotypes have changed the chromosomal constitution of the ancestors of modern rice; however, the nature of these changes is unclear. The recent accumulation of data for genome-wide...

Mexico, the center of origin of maize (Zea mays L.), has taken actions to preserve the identity and diversity of maize landraces and wild relatives. Historically, spatial isolation has been used in seed production to maintain seed purity. Spatial isolation can also be a key component for a strategy to minimize pollen-mediated gene flow in Mexico between transgenic maize and sexually compatible ...

Wheat is one of the founder crops of Western agriculture. This study reconstructs agronomic conditions, potential yields, and kernel weight in the beginnings of cultivation of domesticated free-threshing wheat, c. 8000 BC. The carbon and nitrogen stable isotope compositions and the dimensions of fossil grains of naked wheat (Triticum aestivum/durum) were analysed. Samples were collected in Tell...

Genetic diversity and the relationship among nine japonica rice groups consisting of 288 landraces and varieties in different geographical origins of Northeast Asia (China, Japan, Korea, Democratic People's Republic of Korea) and the Russian Far East district of the Russian Federation were evaluated with 154 simple sequence repeat (SSR) markers. A total of 823 alleles were detected. The observe...