The Internal Transcribed Spacer sequences of the nuclear ribosomal DNA (rDNA ITS 1) were used to verify hybrid origin of four putative hybrids between Platanus occidentalis and P. orientalis. The investigated specimens possessed ribosomal DNA from both the hypothesized parental species, confirming their hybrid nature. Also, chloroplast sequences (cpDNA) confirm the identification of one of the parental species, indicating that P. orientalis is the species involved in the maternal lineage.
Sono state utilizzate le sequenze spaziatrici del DNA nucleare ribosomale per indagare la natura ibridogena di quattro putativi ibridi tra Platanus occidentalis e P. orientalis. Gli individui esaminati risultano possedere il DNA ribosomale di entrambe le specie parentali, confermando la loro natura ibridogena. Inoltre, le sequenze plastidiali confermano l'identificazione delle specie parentali, indicando che P. orientalis è la specie parentale coinvolta nella linea femminile dell'ibrido.
Molecular markers as a tool for the identification of hybrid plane trees
CENNAMO P;
2002-01-01
Abstract
The Internal Transcribed Spacer sequences of the nuclear ribosomal DNA (rDNA ITS 1) were used to verify hybrid origin of four putative hybrids between Platanus occidentalis and P. orientalis. The investigated specimens possessed ribosomal DNA from both the hypothesized parental species, confirming their hybrid nature. Also, chloroplast sequences (cpDNA) confirm the identification of one of the parental species, indicating that P. orientalis is the species involved in the maternal lineage.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
