Genetic Variation in Mexican Jatropha curcas L. Estimated with Seed Oil Fatty Acids

DOI Web Site Web Site 被引用文献1件 参考文献31件
  • Ovando-Medina I.
    Posgrado en Ciencias Biológicas. Universidad Nacional Autónoma de México Centro de Biociencias. Universidad Autónoma de Chiapas
  • Espinosa-García FJ.
    Centro de Investigación en Ecosistemas. Universidad Nacional Autónoma de México
  • Núñez-Farfán J.
    Instituto de Ecología. Universidad Nacional Autónoma de México
  • Salvador-Figueroa M.
    Centro de Biociencias. Universidad Autónoma de Chiapas

この論文をさがす

抄録

The genetic diversity of Mesoamerican populations of the biofuel plant Jatropha curcas, using the fatty acids of the seeds as chemical markers was studied. The oil content of the whole seed in 135 accessions from 38 sites varied between 8.020% and 54.28%. The prevalent fatty acids were oleic acid (18:1) and linoleic acid (18:2), and the proportion of unsaturated fatty acids varied between 74.5% and 83.7%. A study with cloned plants grown in common garden showed that both the content of oil as well as the proportion of fatty acids are highly inheritable, therefore these chemical markers are valid for estimating the genetic diversity of the species. An analysis of principal components showed that the fatty acids that contribute more to the variance are stearic, oleic, linoleic, methylpalmitic, gadoleic and ricinoleic. The populations were classified in ten groups when the data were analyzed for fatty acids by analysis of clusters, showing the elevated genetic variation in natural populations of this native species of Mesoamerica. A discriminant analysis separated the populations in accordance with their geographic origin, which was verified with a Mantel test. Using the Monmonier’s algorithm two genetic barriers between the populations were identified. The results are discussed in light of their microevolutionary significance.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (31)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ