This study examined the chromosome numbers and karyotypes of two taxa of the genus Platanthera (Orchidaceae) from Italy. Cytological analyses showed 2n = 2x = 42 in P. chlorantha and P. algeriensis. Karyotype analysis revealed similarity between the species. The karyotypes are as follows: P. chlorantha consists of 34 metacentric + 8 submetacentric pairs and P. algeriensis consists of 36 metacentric + 6 submetacentric pairs. Both species possess a rather symmetrical karyotype. P. chlorantha has a very similar C-banding pattern to P. algeriensis. DAPI bright blocks were observed in P. chlorantha. These analyses also show the close relationship between the studied species.
Contribution to the study of wild Orchidaceae, genus Platanthera L.C.M. Richard. Karyotype and C-banding analysis of two species from Italy
Alessio Turco
;Antonella AlbanoSecondo
;Pietro Medagli;
2020-01-01
Abstract
This study examined the chromosome numbers and karyotypes of two taxa of the genus Platanthera (Orchidaceae) from Italy. Cytological analyses showed 2n = 2x = 42 in P. chlorantha and P. algeriensis. Karyotype analysis revealed similarity between the species. The karyotypes are as follows: P. chlorantha consists of 34 metacentric + 8 submetacentric pairs and P. algeriensis consists of 36 metacentric + 6 submetacentric pairs. Both species possess a rather symmetrical karyotype. P. chlorantha has a very similar C-banding pattern to P. algeriensis. DAPI bright blocks were observed in P. chlorantha. These analyses also show the close relationship between the studied species.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
