Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Origin And Evolution Of Petrocosmea (Gesneriaceae) Inferred From Both Dna Sequence And Novel Findings In Morphology With A Test Of Morphology-Based Hypotheses, Zhi-Jing Qiu, Yuan-Xue Lu, Chao-Qun Li, Yang Dong, James F. Smith, Yin-Zheng Wang
Origin And Evolution Of Petrocosmea (Gesneriaceae) Inferred From Both Dna Sequence And Novel Findings In Morphology With A Test Of Morphology-Based Hypotheses, Zhi-Jing Qiu, Yuan-Xue Lu, Chao-Qun Li, Yang Dong, James F. Smith, Yin-Zheng Wang
Biology Faculty Publications and Presentations
Background: Petrocosmea Oliver (Gesneriaceae) currently comprises 38 species with four non-nominate varieties, nearly all of which have been described solely from herbarium specimens. However, the dried specimens have obscured the full range of extremely diverse morphological variation that exists in the genus and has resulted in a poor subgeneric classification system that does not reflect the evolutionary history of this group. It is important to develop innovative methods to find new morphological traits and reexamine and reevaluate the traditionally used morphological data based on new hypothesis. In addition, Petrocosmea is a mid-sized genus but exhibits extreme diverse floral variants. This …