US-Mexico planning visit and workshop to assess the genomic basis of local adaptation in maize

美国-墨西哥计划访问并举办研讨会，以评估玉米当地适应的基因组基础

• 批准号: 1404974
• 负责人: Matthew Hufford
• 金额: $ 3.47万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1404974&HistoricalAwards=false
• 关键词: US; Mexico; planning; visit; workshop

This project brings together an international team of U.S. and Mexican researchers to investigate the prevalence of local adaption of maize to high elevations. Collaborators have expertise in evolutionary genetics, theoretical population genetics, quantitative trait mapping, and Mexican agro-ecosystems. U.S. students and researchers will travel to Mexico to join an international collaborative team and gain experience in phenotypic data collection and analysis as well as seed genetic mapping. The expected outcomes of the project include both mapping seed populations and analytical software. Maize (Zea mays ssp. mays) was domesticated approximately 9000 BP in the lowlands of southwest Mexico from a wild grass known as teosinte (Zea mays ssp. parviglumis). Subsequent to domestication maize was brought to multiple, independent highland regions. These migration events required adaptation to drastically different environmental conditions. In the long-term, collaborators will assess the genomic basis of adaptation to these separate highland regions through population genetic and quantitative trait mapping approaches. These data will provide insight regarding the process of repeated evolution and will potentially identify loci relevant to the tolerance of temperature extremes, an important consideration in the face of climate change.

该项目汇集了一个由美国和墨西哥研究人员组成的国际团队，以调查当地玉米对高海拔地区的适应情况。合作者在进化遗传学、理论种群遗传学、数量性状图谱和墨西哥农业生态系统方面拥有专业知识。美国学生和研究人员将前往墨西哥，加入一个国际合作团队，获得表型数据收集和分析以及种子基因图谱方面的经验。该项目的预期成果包括绘制种子种群图和分析软件。玉米(Zea Mays SSP.)Mays)大约是在公元前9000年左右在墨西哥西南部的低地用一种被称为teosinte(Zea Mays SSP)的野草驯化的。小球藻)。在驯化之后，玉米被带到了多个独立的高原地区。这些迁徙事件需要适应截然不同的环境条件。从长远来看，合作者将通过群体遗传和数量性状作图方法评估适应这些不同高地地区的基因组基础。这些数据将提供关于重复进化过程的洞察，并可能确定与极端温度容忍相关的基因座，这是面对气候变化时的一个重要考虑因素。