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DISTRIBUTION OF GAMETOPHYTIC SELF‐INCOMPATIBILITY AND INFRAGENERIC CLASSIFICATION IN SOLANUM
Author(s) -
Whalen Michael D.,
Anderson Gregory J.
Publication year - 1981
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1220077
Subject(s) - subgenus , outcrossing , dioecy , biology , solanum , botany , evolutionary biology , zoology , taxonomy (biology) , pollen
Summary Self‐incompatibility in Solanum appears to be largely restricted to species of subgenus Potatoe , providing further support for the separation of that group from subgenus Solanum. Loss of self‐incompatibility must have taken place early in the evolutionary histories of other subgenera. Possible adaptations for outcrossing, such as enantiostyly, dioecy and to a restricted degree, secondary self‐incompatibility, have subsequently arisen in certain members of these predominantly self‐compatible groups. The distribution of unilateral cross‐incompatibility in Solanum seems to parallel that of self‐incompatibility.