Distribution of self-compatible and self-incompatible populations of Petunia axillaris (Solanaceae) outside Uruguay

被引：0
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作者：
Hisashi Kokubun
Makoto Nakano
Tatsuya Tsukamoto
Hitoshi Watanabe
Goro Hashimoto
Eduardo Marchesi
Laura Bullrich
Isabel L. Basualdo
Teh-hui Kao
Toshio Ando
机构：
[1] Chiba University,Center for Environment, Health and Field Sciences
[2] Chiba University,Faculty of Horticulture
[3] Centro de Pesquisas de História Natural,Facultad de Agronomia
[4] Universidad de la República,Instituto de Floricultura
[5] INTA,Sección Botánica, Facultad de Ciencias Químicas
[6] Universidad Nacional de Asunción,Department of Biochemistry and Molecular Biology
[7] Pennsylvania State University,undefined
来源：
Journal of Plant Research | 2006年 / 119卷
关键词：
Allopatric subspecies; Argentina; Brazil; Differentiation in self-(in)compatibility; Paraguay; South America;
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摘要：
Petunia axillaris occurs in temperate South America and consists of three allopatric subspecies: axillaris, parodii, and subandina. Previous studies have revealed that subsp. axillaris is self-incompatible (SI), subsp. parodii is self-compatible (SC) in Uruguay, and subsp. subandina is SC in Argentina. The SI/SC status over the entire distribution range is not completely understood, however. The objective of this study was to examine the overall SI/SC status of the respective subspecies in comparison with floral morphology. The results confirmed that subsp. parodii and subsp. subandina were SC throughout the distribution range, and that subsp. axillaris was also SC in Brazil and in most of the Argentinean territory. The SI P. axillaris occurs in the natural population only between 34 and 36°S, along the eastern shore of South America. The Brazilian and Uruguayan subsp. axillaris differed in SI/SC status and floral morphology. We discuss the cause of this difference.
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