tailieunhanh - Báo cáo lâm nghiệp: "Molecular markers provide evidence for long-distance planting material transfer during plantation establishment of Dalbergia sissoo Roxb. in Nepal"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Molecular markers provide evidence for long-distance planting material transfer during plantation establishment of Dalbergia sissoo Roxb. in Nepal. | Ann. For. Sci. 61 2004 603-606 INRA EDP Sciences 2004 DOI forest 2004056 603 Note Molecular markers provide evidence for long-distance planting material transfer during plantation establishment of Dalbergia sissoo Roxb. in Nepal Madhav PANDEY Oliver Gailing Ludger Leinemann Reiner Finkeldey Institute of Forest Genetics and Forest Tree Breeding Georg-August-University Goettingen Buesgenweg 2 37077 Goettingen Germany Received 16 May 2003 accepted 6 November 2003 Abstract - We investigated five population pairs of Dalbergia sissoo in Nepal for variation of cpDNA and at the isozyme gene locus Gdh-A. Each population pair consisted of one natural population and a neighboring plantation. Two or three different cpDNA-haplotypes were observed in each population with a total of eight different haplotypes. The differentiation of cpDNA haplotypes between the group of natural populations and the group of plantations was almost complete. Thus the plantations did not originate from any of the investigated natural populations but reproductive material was transported over long distances during plantation establishment. All plantations proved to be fixed at the Gdh-A gene locus which showed considerable polymorphism in natural populations indicating different adaptive potentials of plantations and natural stands. cpDNA haplotpyes isozymes tropical tree seed transfer adaptive potential Résumé - Mise en evidence de transferts à longue distance de materiel de reproduction utilise pour des plantations de Dalbergia sissoo Roxb. au Nepal par l utilisation de marqueurs moléculaires. On a étudié la variabilité d ADNcp et de l isozyme du locus Gdh-A dans cinq paires de populations de Dalbergia sissoo situées au Népal. Chaque paire comportait une population naturelle et une plantation située à proximité on a observé l existence de deux ou trois ADNcp haplotypes dans chaque population avec au total huit haplotypes différents. La différenciation pour les ADNcp haplotypes entre le .