Interspecific variation in clonality in temperate lianas revealed by genetic analysis: Do clonal proliferation processes differ among lianas?. Issue 4 (1st August 2021)

• Record Type: Journal Article
• Authors: Mori, Hideki; Ueno, Saneyoshi; Kamijo, Takashi; Tsumura, Yoshihiko; Masaki, Takashi
• Is Part Of: Plant species biology. Volume 36:Issue 4(2021)
• Page Start: 578
• Page End: 588
• Publication Date: 2021-08-01
• Subjects: climbing mechanisms -- clonal reproduction -- Ogawa Forest reserve -- temperate forest -- vegetative growth; Plants -- Evolution -- Periodicals; Plants -- Classification -- Periodicals; 581
• DOI: 10.1111/1442-1984.12348
• Languages: English
• ISSNs: 0913-557X

Abstract

Abstract: Lianas are important components of forest communities with a considerable impact on overall forest structure and function. Lianas are characterized by extensive clonal reproduction on the forest floor, which is important for their establishment and growth. Previous studies have suggested that clonal reproduction strategies vary substantially among liana species; however, few studies have quantitatively evaluated the clonality strategy in multiple co‐occurring liana species. The primary objective of the present study was to evaluate the relative contribution of clonal reproduction and to understand the clonal proliferation processes in co‐occurring liana species by assessing both small stems on the forest floor and mature stems that climbed trees. The clonal reproduction strategy in four common liana species (stem twiner: Wisteria floribunda ; root climbers: Schizophragma hydrangeoides, Euonymus fortunei and Rhus ambigua ) in a 6‐ha plot and a belt transect within an old‐growth temperate forest in central Japan was evaluated using genetic analysis. The contribution of clonal reproduction was smaller in root climbers than in W. floribunda . All W. floribunda genets with small ramets in the understory had genetically identical ramets that climbed trees, whereas few such ramets were found in root climbers. This indicates that W. floribunda mature ramets laterally produce small ramets via clonal proliferation, whereas seedlings of root climbers grow horizontally to climb trees. The results indicate that the clonal reproduction processes differ greatly among lianas and the clonal growth in lianas plays a contrasting role in their life‐history strategy. Abstract : Lianas are characterized by extensive clonal reproduction on the forest floor, which is important for their establishment and growth. This study evaluated the relative contribution of clonal reproduction at the on‐tree and on‐floor stages in four liana species in an old‐growth temperate forest in central Japan. The results indicated that the clonal proliferation processes differ greatly among lianas and the clonal growth in lianas plays a contrasting role in their life‐history strategy.