• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Genetic Resources and Crop Evolution >Cotton genetic resources in the western states of Mexico: in situ conservation status and germplasm collection for ex situ preservation.
【24h】

Cotton genetic resources in the western states of Mexico: in situ conservation status and germplasm collection for ex situ preservation.

机译：墨西哥西部各州的棉花遗传资源：原生境保存状况和种质收集以进行原生境保存。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Gossypium hirsutum gene pool from Mexico is one of the primary sources for improvement of most of the Acala and Upland cotton growing in the world today. Mexico is also the centre of diversity of the Gossypium genus with 11 of the 13 known diploid Gossypium species of the Western Hemisphere endemic to its boundaries. In 2002 and 2003, the current status of these important genetic resources was surveyed, and germplasm was collected in the western states of Mexico. Information was collected to verify current status and circumscription of the endemic Gossypium species. Sixty years after the first in-depth studies of Gossypium in Mexico, increasing human population, modernization and urbanization have severely reduced the survival of G. hirsutum landraces. Representatives of cotton landraces evidently survive only as curiosities in garden plots or dooryards, or as occasional feral plants. Populations of seven known species, G. aridum, G. barbadense, G. gossypioides, G. hirsutum, G. laxum, G. lobatum, and G. schwendimanii, and one undescribed wild diploid Gossypium taxon were located during the survey. In situ conservation of some of these species is threatened. Samples of the collected germplasm were deposited in the Cotton Collection of the US National Plant Germplasm System where they will be available to scientists worldwide for research, breeding, and education. Additionally, a Gossypium species nursery is being established by the Mexican government for the preservation, and as a working legacy, of this resource. Knowledge of the diversity and, consequently, utilization of the genetic resources in these species cannot be fully realized in situ under current conditions..
机译：来自墨西哥的陆地棉陆地棉基因库是当今世界上大部分Acala和Upland棉花生长的主要改良来源之一。墨西哥还是棉属的多样性中心，西半球13种已知的二倍体棉属中的11种为其边界所特有。在2002年和2003年，对这些重要遗传资源的现状进行了调查，并在墨西哥西部各州收集了种质。收集信息以核实地方性棉属物种的现状和限制。在墨西哥首次对棉进行深入研究六十年后，人口的增长，现代化和城市化严重降低了陆地棉的生存。棉花地方品种的代表显然只能作为好奇心在花园地块或门口花园中生存，或仅作为野性植物生存。在调查期间，找到了七个已知物种的种群，这些物种分别是：姬松丹，巴巴登塞山棉，棉球菌，hirsutum棉，腊克森，球状博根和schwendimanii，以及一个未描述的野生二倍体棉兰。其中某些物种的原地保护受到威胁。收集到的种质样品存放在美国国家植物种质资源系统棉花收藏中，世界各地的科学家都可以使用它们进行研究，育种和教育。此外，墨西哥政府正在建立一个棉花属苗圃，以保护这种资源并作为一项工作遗产。在当前条件下，无法充分就地了解这些物种的多样性以及因此对遗传资源的利用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号