Variation in ITS length seems well correlated with morphological and geographic characters in Abies , suggesting that the length variation may be a phylogenetically informative character within the genus.

• 这与松科属间ITS长度的变异是由于ITS1长度的变异所致相一致。 冷杉属ITS长度的变异式样与形态特征和地理分布具有很好的相关性。