Premium
NATURAL PENTAPLOID FRAGARIA CHILOENSIS–F. VESCA HYBRIDS IN COASTAL CALIFORNIA AND THEIR SIGNIFICANCE IN POLYPLOID FRAGARIA EVOLUTION
Author(s) -
Bringhurst R. S.,
Khan Daud Ahmad
Publication year - 1963
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1963.tb12239.x
Subject(s) - fragaria , biology , hybrid , polyploid , stolon , botany , ploidy , genetics , gene
Beinghurst, R. S., and Daud Ahmad Khan. (U. California, Davis.) Natural pentaploid Fragaria chiloensis–F. vesca hybrids in coastal California and their significance in polyploid Fragaria evolution. Amer. Jour. Bot. 50(7): 658–661. Illus. 1963.—Two natural pentaploid (35 chromosome) hybrids of Fragaria chiloensis ( 2n = 56 ) –F. vesca (2 n = 14) were found in coastal California, an extensive colony of a sterile female clone ascertained to be over 40 years old at Point Sur, and a younger male clonal colony near Montara. The putative parents were present at each site. Apparently the hybrids successfully compete with F. chiloensis because of superior stolon productivity. Hybrids of this type are probably fairly common and may have already led to the development of fertile decaploid colonies through somatic doubling or the functioning of unreduced gametes.