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Blueberry and cranberry pangenomes as a resource for future genetic studies and breeding efforts
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作者 Alan E.Yocca Adrian Platts +23 位作者 Elizabeth Alger Scott Teresi Molla F.Mengist Juliana Benevenuto Luis Felipe V.Ferrão MacKenzie Jacobs Michal Babinski Maria Magallanes-Lundback Philipp Bayer Agnieszka Golicz Jodi L.Humann Dorrie Main Richard V.Espley David Chagné Nick W.Albert Sara Montanari Nicholi Vorsa James Polashock Luis Díaz-Garcia Juan Zalapa Nahla V.Bassil Patricio R.Munoz Massimo Iorizzo Patrick P.Edger 《Horticulture Research》 SCIE CSCD 2023年第11期96-105,共10页
Domestication of cranberry and blueberry began in the United States in the early 1800s and 1900s,respectively,and in part owing to their f lavors and health-promoting benefits are now cultivated and consumed worldwide... Domestication of cranberry and blueberry began in the United States in the early 1800s and 1900s,respectively,and in part owing to their f lavors and health-promoting benefits are now cultivated and consumed worldwide.The industry continues to face a wide variety of production challenges(e.g.disease pressures),as well as a demand for higher-yielding cultivars with improved fruit quality characteristics.Unfortunately,molecular tools to help guide breeding efforts for these species have been relatively limited compared with those for other high-value crops.Here,we describe the construction and analysis of the first pangenome for both blueberry and cranberry.Our analysis of these pangenomes revealed both crops exhibit great genetic diversity,including the presence-absence variation of 48.4%genes in highbush blueberry and 47.0%genes in cranberry.Auxiliary genes,those not shared by all cultivars,are significantly enriched with molecular functions associated with disease resistance and the biosynthesis of specialized metabolites,including compounds previously associated with improving fruit quality traits.The discovery of thousands of genes,not present in the previous reference genomes for blueberry and cranberry,will serve as the basis of future research and as potential targets for future breeding efforts.The pangenome,as a multiple-sequence alignment,as well as individual annotated genomes,are publicly available for analysis on the Genome Database for Vaccinium-a curated and integrated web-based relational database.Lastly,the core-gene predictions from the pangenomes will serve useful to develop a community genotyping platform to guide future molecular breeding efforts across the family. 展开更多
关键词 BREEDING CULTIVAR CROPS
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丁二烯生产过程氧含量监测的方法研究
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作者 阎杰 艾农 +2 位作者 殷帅 杨杰 陈民旺 《应用物理》 2023年第12期509-515,共7页
丁二烯是一种橡胶合成行业中重要的基本有机化工原料,由于其分子中含有共轭双键,化学性质活泼,具有易燃易爆特性,是安全生产中的重大隐患,因此监控丁二烯精制系统氧含量具有重要的安全意义。本文采用可调谐激光吸收光谱法(Tunable Diode... 丁二烯是一种橡胶合成行业中重要的基本有机化工原料,由于其分子中含有共轭双键,化学性质活泼,具有易燃易爆特性,是安全生产中的重大隐患,因此监控丁二烯精制系统氧含量具有重要的安全意义。本文采用可调谐激光吸收光谱法(Tunable Diode Laser Absorption Spectroscopy)结合Levenberg- Marquardt非线性拟合算法,实现了对低浓度氧气的准确测量;通过对气液混合态待测样品在线预处理系统的研究,实现了在线监测结果与手工比对结果的一致性。首次在国内实现了丁二烯精制系统中氧气浓度的在线监测。 展开更多
关键词 TDLAS 氧气测量 丁二烯精制 橡胶合成
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