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THE CHROMOSOME NUMBER OF COCHLEARIA PYRENAICA DC. NEAR MORESNET (BELGIUM)
Author(s) -
Kakes P.
Publication year - 1973
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1973.tb00833.x
Subject(s) - anaphase , ploidy , biology , chromosome number , chromosome , evolutionary biology , karyotype , population , zoology , genetics , demography , sociology , gene
SUMMARY A study was made of the chromosome number of a population of Cochlearia pyrenaica DC. occurring near Moresnet in NE. Belgium. The diploid number appears to be 12; no accessory chromosomes were observed. The plants studied are characterized by very large heterochromatic regions which are responsible for the appearance of a conspicuous zonation pattern in the chromosomes during late anaphase. The possible significance of this phenomenon in the taxonomy of the Cochlearia is discussed.