J Integr Plant Biol. ›› 2006, Vol. 48 ›› Issue (4): -.DOI: 10.1111/j.1744-7909.2006.00209.x

• Research Articles •    

PCR-RFLP and AP-PCR of rbcL and ITS of rDNA Show That ×Taxodiomeria peizhongii (Taxodium × Cryptomeria) Is not an Intergeneric Hybrid

Yan Ling, Wei-Feng Lu, Fan Lu, Yu-Guo Wang, Jia-Kuan Chen and Wen-Ju Zhang   

Abstract: ×Taxodiomeria peizhongii Z. J. Ye, J. J. Zhang et S. H. Pan was regarded as a new intergeneric hybrid between Taxodium mucronatum Tenore (as the female donor) and Cryptomeria fortunei Hooibrenk ex Otto et Dietr (as the male donor). To confirm the authenticity of the intergeneric hybrid, we analyzed the rbcL gene and the internal transcribed spacer (ITS) of 26S–18S ribosomal RNA gene of the three species using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and arbitrarily primed PCR (AP-PCR), and obtained the following results: i) Taxodiomeria peizhongii had the same RFLP maps of the rbcL gene and the ITS as Taxodium mucronatum, but was different from C. fortunei; ii) a 311-bp PCR amplification product was obtained in C. fortunei by AP-PCR of ITS, but was not found in Taxodiomeria peizhongii. Our results have demonstrated that C. fortunei did not provide any genome for Taxodiomeria peizhongii, implying that T. peizhongii is not an intergeneric hybrid between the two species.(Author for correspondence.Tel:+86 (0) 21 6564 2819;Fax: +86 (0) 21 6564 2468;E-mail: wjzhang@fudan.edu.cn)

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2022 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q