Transposons played a major role in the diversification between the closely related almond (Prunus dulcis) and peach (P. persica) genomes: Results from the almond genome sequence.
Combining both short and long-read sequencing, we have estimated the almond Prunus dulcis cv. Texas genome size in 235 Mbp and assembled 227.6 Mb of its sequence. The highly heterozygous compact genome of Texas comprises eight chromosomes, to which we have anchored over 91% of the assembly. We annotated 27,042 protein-coding genes and 6,800 non-coding transcripts. High levels of genetic variability were characterized after resequencing a collection of ten almond accessions. Phylogenomic comparison with the genomes of 16 other close and distant species allowed estimating that almond and peach diverged around 5.88 Mya. Comparison between peach and almond genomes confirmed the high synteny between these close relatives, but also revealed high numbers of presence-absence variants, many attributable to the movement of transposable elements (TEs). The number and distribution of TEs between peach and almond was similar, but the history of TE movement was distinct, with peach having a larger proportion of recent transpositions and almond preserving a higher level of polymorphism in the older TEs. When focusing on specific genes involved in key characters such as the bitter vs. sweet kernel taste and the formation of a fleshy mesocarp, we found that for one gene associated with the biosynthesis of amygdalin that confers the bitter kernel taste, several TEs were inserted in its vicinity only in sweet almond cultivars but not in bitter cultivars and Prunus bitter kernel relatives, including P. webbii, P. mume, and other species like peach and cherry. TE insertions likely to produce affects in the expression of six more genes involved in the formation of the fleshy mesocarp were also identified. Altogether, our results suggest a key role of TEs in the recent history and diversification of almond with respect to peach.
23rd Food & Hotel China 2019
After 24 years of development, FHC has become the industry's leading trade show. It is a platform for food and hospitality industry to enter the Chinese food and beverage market.
The last exhibition hosted 3,000 exhibitors from 48 countries and regions. The exhibition area has expanded to 120,000 square meters, and the scale is beyond the past. The three-day exhibition welcomed 118,274 professional visitors, and the attendance rate increased by 23% compared with the past, making the exhibition hall full of vitality and vitality.
Prof. Linda Tapsell Presented the Latest Findings on Nuts and Health at the Nutrition Seminar in Boca Raton
Prof. Tapsell also presented some scientific studies which concluded that nuts may help reduce the risk factors of cardiovascular disease (high blood pressure, high LDL “bad” cholesterol, inflammation, etc.) which have been also associated with increased body fat.
Dr. Vicki McWilliam Presented an Update of Current Evidence and Management on Nut Allergies during the Scientific Seminar in Boca Raton
Although much of the literature to date has focused on peanut allergy and research on tree nut allergy has been limited, it has been reported that the prevalence of tree nut allergy across the world is about 2%, Dr. McWilliam explained. One of the key messages of her presentation was that the way nut allergies are managed has changed significantly. Whereas in the past nut allergy management was based on removing all nuts (peanuts and tree nuts) from the diet, thanks to new research findings, avoidance is no longer recommended as a preventative strategy for food allergy. Nowadays, nut allergy prevention is based on the introduction of nuts and nut pastes before the child is 12 months old. On the other hand, those with a single nut allergy are advised to include non-allergic nuts in their diet. Unfortunately, food labels do not usually specify the type of nuts that a product contain or “may contain”.
The presentation is available at https://nutfruitcongress.org/bocaraton2019/program.
Dr. Vicki McWilliam Presented an Update of Current Evidence and Management on Nut Allergies during the Scientific Seminar in Boca Raton
Although much of the literature to date has focused on peanut allergy and research on tree nut allergy has been limited, it has been reported that the prevalence of tree nut allergy across the world is about 2%, Dr. McWilliam explained. One of the key messages of her presentation was that the way nut allergies are managed has changed significantly. Whereas in the past nut allergy management was based on removing all nuts (peanuts and tree nuts) from the diet, thanks to new research findings, avoidance is no longer recommended as a preventative strategy for food allergy. Nowadays, nut allergy prevention is based on the introduction of nuts and nut pastes before the child is 12 months old. On the other hand, those with a single nut allergy are advised to include non-allergic nuts in their diet. Unfortunately, food labels do not usually specify the type of nuts that a product contain or “may contain”.
The presentation is available at https://nutfruitcongress.org/bocaraton2019/program.
The INC Sponsored a session on “Nuts and Cardiometabolic Health” within the Today’s Dietitian Annual Meeting
Prof. Linda Tapsell Presented the Latest Findings on Nuts and Health at the Nutrition Seminar in Boca Raton
Prof. Tapsell also presented some scientific studies which concluded that nuts may help reduce the risk factors of cardiovascular disease (high blood pressure, high LDL “bad” cholesterol, inflammation, etc.) which have been also associated with increased body fat.