Sorbus milensis, a new hybridogenous species from northwestern Bohemia

Title:

Sorbus milensis, a new hybridogenous species from northwestern Bohemia
Sorbus milensis, nový hybridogenní druh jeřábu ze severozápadních Čech

Creator:

Lepší, Martin, Vít, Petr, Lepší, Petr, Boublík, Karel, and Suda, Jan

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:aace7ac2-4cdb-c487-44d8-6ee58fafdda3
uuid:aace7ac2-4cdb-c487-44d8-6ee58fafdda3

Subject:

apoximis, Czech Republic, endemic, hybridization, karyology, multivariate morphometrics, phytosociology, Rosaceae, SSR markers, Sorbus latifolia agg., and taxonomy

Type:

article and TEXT

Description:

A new apomictic triploid (2n = 3x = 51) species belonging to the Sorbus latifolia group, S. milensis M. Lepší, K. Boublík, P. Lepší et P. Vít, putatively of hybridogenous origin between sexual Sorbus aria s.l. and S. torminalis, is described from the České středohoří Mts (northwestern Bohemia, Czech Republic). Several biosystematic techniques, including molecular (nuclear microsatellite markers), karyological (chromosome counts, genome size) and multivariate morphometrics were used to assess the variation in this species and justify its independent taxonomic status. The only known population of S. milensis consists of 38 adult and 19 juvenile individuals, is phenotypically homogenous and distinct from other Bohemian hybridogenous Sorbus species. All sampled individuals were karyologically uniform and showed little genetic variation. Sorbus milensis is a stenoendemic occurring on Milá hill (situated ca 9.5 km NNW of the town of Louny) where it grows on basaltic rocks, in ravines and on screes. The majority of the individuals grow in scree forests of the Tilio-Acerion alliance; other vegetation types include xeric scrub of the Prunion spinosae alliance and xerothermophilous grassland communities of the Festucion valesiacae alliance. A detailed distribution map for this species is provided as well as photographs of the type specimen.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/

Source:

Preslia | 2008 Volume:80 | Number:2

Harvested from:

CDK

Metadata only:

false