Unilateral incompatibility in Capsicum (Solanaceae): occurrence and taxonomic distribution

Annals of Botany
A Naci Onus, Barbara Pickersgill

Abstract

Unilateral incompatibility (UI) occurs when pollinations between species are successful in one direction but not in the other. Self-incompatible (SI) species frequently show UI with genetically related, self-compatible (SC) species, as pollen of SI species is compatible on the SC pistil, but not vice versa. Many examples of unilateral incompatibility, and all those which have been studied most intensively, are found in the Solanaceae, particularly Lycopersicon, Solanum, Nicotiana and Petunia. The genus Capsicum is evolutionarily somewhat distant from Lycopersicon and Solanum and even further removed from Nicotiana and Petunia. Unilateral incompatibility has also been reported in Capsicum; however, this is the first comprehensive study of crosses between all readily available species in the genus. All readily available (wild and domesticated) species in the genus are used as plant material, including the three genera from the Capsicum pubescens complex plus eight other species. Pollinations were made on pot-grown plants in a glasshouse. The number of pistils pollinated per cross varied (from five to 40 pistils per plant), depending on the numbers of flowers available. Pistils were collected 24 h after pollination and fixed for 3...Continue Reading

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Citations

Feb 10, 2011·Plant Cell Reports·Iris HeidmannKim Boutilier
Jul 11, 2007·Proceedings of the National Academy of Sciences of the United States of America·Linda Perry, Kent V Flannery
Jun 2, 2016·Annals of Botany·Carolina Carrizo GarcíaFriedrich Ehrendorfer
Nov 15, 2015·Plant Science : an International Journal of Experimental Plant Biology·Federico ScossaAlisdair R Fernie
Mar 20, 2013·American Journal of Botany·Carol Goodwillie, Jennifer M Ness
Jul 21, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sheh May TamMarie-Angèle Grandbastien
Nov 17, 2009·Biochemical Genetics·Ayşe Gul InceA Naci Onus
Feb 9, 2021·Current Opinion in Plant Biology·Karla GaspariniAgustin Zsögön
Aug 14, 2021·Heliyon·Ruth ButemeElizabeth Balyejusa Kizito
Aug 18, 2021·Proceedings of the National Academy of Sciences of the United States of America·Pasquale TripodiNils Stein

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