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中国农业科学院北京畜牧兽医研究所揭示无芒雀麦耐盐碱的机制

  • 2026-05-31 23:04:27
中国农业科学院北京畜牧兽医研究所揭示无芒雀麦耐盐碱的机制

近日,中国农业科学院北京畜牧兽医研究所牧草种质资源保护与利用创新团队在无芒雀麦响应盐碱胁迫的基因挖掘方面取得了新进展,鉴定出了增强无芒雀麦对盐和碱耐受性的关键基因,为培育耐盐和耐碱牧草新品种提供了重要理论依据相关研究结果发表在Industrial Crops & Products上。

土壤盐碱化是全球农业面临的重大挑战,严重影响作物和牧草生长。无芒雀麦(Bromus inermis L.)是一种耐寒、耐旱耐盐碱的优质牧草,但其抵御盐碱胁迫的分子机制关键基因尚不清楚研究人员通过盐碱胁迫后生理指标分析、全长转录组二代转录组联合分析,鉴定出124,616高质量转录本,BUSCO 评估核心基因完整性达91%,并完成12,290个基因的功能注释和碱胁迫下生理指标和差异表达基因的数量在 12 小时达到峰值,表明12小时是无芒雀麦响应碱胁迫的关键临界时间点。进一步分析发现盐和碱胁迫响应的共有差异表达基因分别为71和73个,通过酵母异源表达实验发现Bromus_inermis_049541074327262350001261同时增强酵母对盐和碱胁迫的耐受性,Bromus_inermis_295092特异性增强耐盐性,Bromus_inermis_142424特异性增强耐碱性为解析无芒雀麦耐盐碱的调控网络提供了关键切入点,也为培育耐盐碱无芒雀麦新品种提供了重要的候选基因资源,为饲草耐盐碱分子育种提供基因资源与理论依据

博士研究生李文翔硕士研究生代淑杰梁燕霞为论文共同第一作者,中国农业科学院北京畜牧兽医研究所江文波副研究员、宁夏大学王彬教授、甘肃农业大学南丽丽教授为论文共同通讯作者中国中医科学院中药资源中心李晓琳副研究员和内蒙古大学李俊教授给予此项研究重要的指导和帮助该研究得到宁夏回族自治区重点研发计划项目、甘肃省重大专项、国家盐碱地综合利用技术创新中心等项目资助。

原文链接

https://doi.org/10.1016/j.indcrop.2026.123153

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  1. CONNECT:[ UseTime:0.000663s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001136s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000358s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000288s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000478s ]
  6. SELECT * FROM `set` [ RunTime:0.000182s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000580s ]
  8. SELECT * FROM `article` WHERE `id` = 540884 LIMIT 1 [ RunTime:0.000503s ]
  9. UPDATE `article` SET `lasttime` = 1780427004 WHERE `id` = 540884 [ RunTime:0.016997s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.005883s ]
  11. SELECT * FROM `article` WHERE `id` < 540884 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002382s ]
  12. SELECT * FROM `article` WHERE `id` > 540884 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004482s ]
  13. SELECT * FROM `article` WHERE `id` < 540884 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003121s ]
  14. SELECT * FROM `article` WHERE `id` < 540884 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.012596s ]
  15. SELECT * FROM `article` WHERE `id` < 540884 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.040694s ]
0.160640s