Karyomorphology of two subspecies of Anthemis maritima (Asteraceae) from Algeria
- Authors: Nassar M.; Sakhraoui N.; Domina G.
- Publication year: 2023
- Type: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/616093
Abstract
The chromosome number and karyomorphology of two subspecies of the Anthemis maritima complex collected from two different coastal localities in the Skik-da region (northeastern Algeria) are reported in this study: Anthemis maritima subsp. maritima, which is common throughout the Mediterranean, and A. maritima subsp. bolosii, a strict Algerian endemic recently rediscovered after 100 years of disappear-ance. The Feulgen staining method indicated that Anthemis maritima subsp. maritima is a tetraploid with 2n=4x=36 chromosomes (2n=11m+3sm+4st), and Anthemis mar-itima subsp. bolosii is a diploid with 2n=2x=18 chromosomes (2n=4m+3sm+2st). Both taxa have symmetrical karyotypes, 2A and 1A, respectively, according to Stebbins clas-sification. These findings are novel for both the subspecies Anthemis maritima subsp. bolosii and the Algerian population of Anthemis maritima subsp. maritima.