Lu Huanhuan, Zheng Yuying, Zhao Ting, Tang Liuban, Zhang Fan, Xie Wengang
State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China.
BMC Plant Biol. 2025 Apr 28;25(1):550. doi: 10.1186/s12870-025-06590-y.
Commonly cultivated oats (Avena nuda and Avena sativa) play an important role in agricultural planting structure adjustment, ecological environment protection and grassland animal husbandry development, and their effective cultivation is conducive to food security and grassland degradation restoration. This study comprehensively collected the geographic distribution and environmental data of A. nuda and A. sativa from global regions, the ensembled niche and Marxan model were used to predict the potential spatiotemporal distribution and planting pattern of commonly cultivated oats, and further explore the environmental factors that affected the spatial distribution and genetic diversity pattern.
The results showed that: (1) The potential suitability regions of A. nuda and A. sativa were concentrated in the plateau (spanning 25°45°N, 90°125°E; and 40°60°N, 10°W ~ 35°E) and plain (spanning 35°65°N, 10°W ~ 55°E; and 30°~50°N, 65°W ~ 100°E), respectively. (2) Over time, the suitability regions of A. nuda and A. sativa showed an expanding trend. (3) The potential planting regions of A. nuda were widely distributed in the Qinghai-Tibet Plateau, Mongolia Plateau, West Siberian Plain, Iran Plateau, Bavaria Plateau and Yukon Plateau; that of A. sativa were concentrated in Central Great Plains of North America, Mississippi River Plain, Midland Plain, Bode Plain, Western Europe Plain, Eastern Europe Plain, West Siberia Plain, Central Australia Plain and Qinghai-Tibet Plateau. (4) The spatial distribution pattern of commonly cultivated oats in the current period was responsive to temperature and habitat conditions. In addition, the genetic distance of A. nuda was responsive to mean diurnal air temperature range (bio02), temperature seasonality (bio04), precipitation amount of the driest month (bio14), precipitation seasonality (bio15), and mean monthly precipitation amount of the coldest quarter (bio19), while the genetic distance of A. sativa was only affected by mean annual air temperature (bio01).
This study aims to explore the potential spatiotemporal and planting patterns of commonly cultivated oats in global regions, to clarify their potential distribution and planting regions, and provide an effective theoretical basis for the collection, preservation and utilization of global commonly cultivated oat population resources.
Not applicable.
常见栽培燕麦（裸燕麦和普通燕麦）在农业种植结构调整、生态环境保护和草地畜牧业发展中发挥着重要作用，其有效栽培有利于粮食安全和草地退化恢复。本研究全面收集了全球各地区裸燕麦和普通燕麦的地理分布及环境数据，利用集成生态位模型和马克思an模型预测常见栽培燕麦的潜在时空分布和种植模式，并进一步探究影响其空间分布和遗传多样性格局的环境因素。
结果表明：（1）裸燕麦和普通燕麦的潜在适宜区分别集中在高原地区（北纬25°45°，东经90°125°；以及北纬40°60°，西经10°东经35°）和平原地区（北纬35°65°，西经10°东经55°；以及北纬30°50°，西经65°西经100°）。（2）随着时间推移，裸燕麦和普通燕麦的适宜区呈扩大趋势。（3）裸燕麦的潜在种植区广泛分布于青藏高原、蒙古高原、西西伯利亚平原、伊朗高原、巴伐利亚高原和育空高原；普通燕麦的潜在种植区集中在北美大平原中部、密西西比河平原、中部平原、博德平原、西欧平原、东欧平原、西西伯利亚平原、澳大利亚中部平原和青藏高原。（4）当前时期常见栽培燕麦的空间分布格局对温度和栖息地条件有响应。此外，裸燕麦的遗传距离对日平均气温范围（生物气候变量02）、温度季节性（生物气候变量04）、最干旱月份降水量（生物气候变量14）、降水季节性（生物气候变量15）以及最寒冷季度月平均降水量（生物气候变量19）有响应，而普通燕麦的遗传距离仅受年平均气温（生物气候变量01）影响。
本研究旨在探究全球常见栽培燕麦的潜在时空和种植模式，明确其潜在分布和种植区域，为全球常见栽培燕麦群体资源的收集、保存和利用提供有效的理论依据。
不适用。
