Improvement of Cottonseed Oil and Fatty Acids Through Introgression Breeding in Upland Cotton

• 全文链接

陆地棉渗透育种提高棉籽油和脂肪酸含量

关键词：

来源：

PLANTS-BASEL

全文链接：

//agri.nais.net.cn/topic/downloadFile/c42e64c3-7498-4b96-9c17-2a45d60995de

来源地址：

https://www.mdpi.com/2223-7747/14/19/3078

资源所属：

棉花遗传育种

类型：

学术文献

语种：

英语

原文发布日期：

2025-10-05

摘要：

Upland cotton is an important fiber and oilseed crop. Cottonseed produces approximately 15% of farm gate value in cotton production. Therefore, improvement of cottonseed oil can significantly increase the economic return of cotton production with the same land use and investment. However, genetic variation in cottonseed oil is highly limited within upland cotton, limiting the genetic gain in cottonseed oil. Introgression breeding can alleviate this bottleneck effect by introducing desirable genes from Pima to Upland cotton. The objective of this study was to evaluate introgression lines (ILs) for better cottonseed oil. A population of 590 ILs, developed from a cross between Acala 1517-99 and Pima, was grown in Las Cruces, NM in 2022 which was used for the fatty acid methyl ester analysis through gas chromatography. There was a high level of variation in cottonseed oil and fatty acids. In the biplot, cottonseed oil was positively correlated with oleic acid and negatively related with palmitic acid. The cluster analysis identified a group of ILs with the highest average oil and oleic acid. As a result, ILs with better oil profiles were identified for further testing and analysis toward the development of high-quality cotton varieties with higher and better oil.