Differentiation in the status of self-incompatibility among Calibrachoa species (Solanaceae)

Tatsuya Tsukamoto, Toshio Ando, Hitoshi Watanabe, Hisashi Kokubun, Goro Hashimoto, Ushio Sakazaki, Enrique Suárez, Eduardo Marchesi, Ken Oyama, Teh Hui Kao

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8 Scopus citations

Abstract

The overall status of self-incompatibility, as assessed by the rate of capsule-set after self-pollination, was investigated in the genus Calibrachoa (Solanaceae). Thirty-two species were surveyed using a total of 655 individuals collected in 102 different native populations in Argentina, Brazil, Mexico, and Uruguay. The rate of capsule-set in 278 voucher specimens collected from the same native habitats was also measured to obtain additional information to assess the degree of self-(in)compatibility. Only one species, Calibrachoa parviflora, was self-compatible (SC, autogamous) and the other 31 species were found to be self-incompatible (SI). A mixed population (SI and SC individuals in the same population) was not found. The differentiation of C. parviflora as an autogamous species is associated with a successful occupation of different (riparian) habitats within a larger range of geographic distribution compared to the rest of the species in the principally SI genus of Calibrachoa.

Original languageEnglish (US)
Pages (from-to)185-193
Number of pages9
JournalJournal of Plant Research
Volume115
Issue number3
DOIs
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • Plant Science

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