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SPECIES DIFFERENTIATION IN PAPAVER DUBIUM
Author(s) -
KOOPMANS ALIE
Publication year - 1970
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1970.tb02493.x
Subject(s) - biology , papaver , karyotype , chromosome , meiosis , botany , chromosome number , genetics , zoology , gene
S ummaryPapaver dubium seeds were obtained from several European countries. Two different chromosome numbers were found: 2 n = 42 and 2 n = 28. The forty‐two chromosome races are most widespread. Four races with 2 n = 28 chromosomes can be distinguished. From results of cytological investigation especially of chromosome pairing behaviour during meiosis, it is suggested that the two 2 n = 28 chromosome races, Alb and Upps II , may be considered as subspecies whereas the other two ( Cors II and Ca Sw ) are best regarded as chromosome races of P. dubium L.
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