Ohri D, Bhargava A, Chatterjee A
Division of Genetics and Plant Breeding, National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, U.P., India.
Plant Biol (Stuttg). 2004 Sep;6(5):555-61. doi: 10.1055/s-2004-821235.
The 4C DNA values of 112 species, belonging to 37 families have a range from 0.83 pg (Bixa orellana) to 15.54 pg (Thryallis angustifolia), showing a 18.72-fold variation. The genome size varies from 0.21 pg (Bixa orellana) to 3.32 (Thespesia populnea), with a 15.8-fold difference. The Bombacaceae has the minimum range (1.08-fold) of variation, while the maximum (5.0-fold) is shown by the Fabaceae. The Boraginaceae, Lauraceae, Malpighiaceae, and Malvaceae generally have higher 4C DNA values of > 10 pg, while the Bixaceae, Caricaceae, Oxalidaceae, and Santalaceae have lower values of < 2.0 pg. These data add further to our knowledge on variation in DNA amount in tropical hardwoods.
属于37个科的112个物种的4C DNA值范围为0.83皮克（红木）至15.54皮克（窄叶苞杯花），呈现出18.72倍的变化。基因组大小从0.21皮克（红木）到3.32皮克（杨叶肖槿）不等，相差15.8倍。木棉科的变化范围最小（1.08倍），而豆科的变化范围最大（5.0倍）。紫草科、樟科、金虎尾科和锦葵科通常具有高于10皮克的较高4C DNA值，而红木科、番木瓜科、酢浆草科和檀香科的值较低，小于2.0皮克。这些数据进一步增加了我们对热带硬木DNA含量变异的了解。
