SBIR Phase II: Production of Periclinal Chimeric Potatoes Containing New Multigenic Traits for Pest Resistance

SBIR 第二阶段：生产含有抗害虫新多基因性状的周临床嵌合马铃薯

• 批准号: 9710654
• 负责人: Carolyn Sluis
• 金额: $ 29.99万
• 依托单位: Tissue-Grown Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-11-01 至 1999-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9710654&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Production; Periclinal

*** 9710654 Sluis This Small Business Innovation Research Phase II project addresses the transfer of pest resistance traits from wild species to domestic potato via the generation of periclinal chimeras. Tissue-Grown scientists have developed a novel method for combining the best characteristics of two types of potato by forming chimeras. Chimeric plants are composed of cell layers from different parents. The goal of the proposed research is the creation of new potato varieties with the epidermal layer of a wild species and the core layers of a commercial potato variety. The germplasm targets of this proposal would combine commercial potato varieties with wild species lines selected for insect resistance and tolerance to late blight (Phytophthora infestans). The potential commercial application of the research is the rapid generation of new potato varieties that can take advantage of wild germplasm traits for pest resistance without the undesirable wild tuber traits so difficult to eliminate through breeding. Wild species contain a wealth of disease resistance genes and genes of horticultural interest, but they also come with a heavy burden of genes detrimental to potato tuber production, such as delayed tuber set, odd colors, shapes and sizes of tubers, and excessive tuber glycoalkaloids. Using chimeras, many well-established and valuable varieties can be enhanced without disturbing or damaging their primary commercial tuber traits. ***

*9710654 Sluis这个小型企业创新研究第二阶段项目致力于通过产生倾周嵌合体将抗虫害性状从野生物种转移到家用马铃薯。组织培养科学家已经开发出一种新的方法，通过形成嵌合体来结合两种马铃薯的最佳特征。嵌合植物是由来自不同亲本的细胞层组成的。这项拟议研究的目标是创造具有野生物种的表皮层和商业马铃薯品种的核心层的新马铃薯品种。这项建议的种质目标是将商业马铃薯品种与因抗虫性和抗晚疫病(Phytophthora Infestans)而选择的野生物种品系相结合。这项研究的潜在商业应用是快速产生新的马铃薯品种，这些新品种可以利用野生种质性状进行抗虫害，而不会产生难以通过育种消除的不良野生块茎性状。野生种含有丰富的抗病基因和园艺基因，但它们也伴随着大量不利于马铃薯块茎生产的基因，如块茎形成延迟，块茎颜色、形状和大小奇怪，块茎糖苷生物碱过多。利用嵌合体，许多成熟和有价值的品种可以在不干扰或损害其主要商业块茎特征的情况下进行改良。***