The inheritance of modifiers conferring self-fertility in the partially self-incompatible perennial, Campanula rapunculoides L. (Campanulaceae)

Evolution; International Journal of Organic Evolution
Sara V Good-Avila, Andrew G Stephenson

Abstract

The role of partial self-incompatibility in plant breeding system evolution has received little attention. Here, we examine the genetic basis of modifiers conferring self-fertility in the creeping bellflower, Campanula rapunculoides L. (Campanulaceae), a partially self-incompatible herb. A survey of 35 individuals from two natural populations indicates that 45% of them are strongly self-incompatible, 40% intermediately self-incompatible, and 15% weakly self-incompatible and that some plants show a strong breakdown in self-incompatibility over floral age. We generated 101 F1 families by random crossing among 31 parental plants and estimated the heritability of self-fertility in day 1 and day 4 female-phase flowers, the genetic correlation between day 1 and day 4 self-fertility, and the coefficient of additive genetic variance of self-fertility. We use linear regression and data from additional crosses to examine whether there are significant maternal effects in the expression of self-fertility. We use Fain's test to determine if a major gene influences self-fertility and, finding no evidence, use data from additional crosses on an F2 generation to estimate the mean number and dominance of genes conferring self-fertility. These a...Continue Reading

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Citations

May 22, 2010·Sexual Plant Reproduction·Houria Hadj-ArabVéronique Chable
Jul 2, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andrew G StephensonJames A Winsor
Aug 13, 2002·The Plant Cell·Nancy A Eckardt
Feb 26, 2008·Trends in Plant Science·Jeremiah W Busch, Daniel J Schoen
Nov 17, 2007·Current Opinion in Genetics & Development·Kirsten Bomblies, Detlef Weigel
May 30, 2008·Evolution; International Journal of Organic Evolution·Carol Goodwillie
Jan 6, 2007·The New Phytologist·Miriam M Ferrer, Sara V Good-Avila
Apr 11, 2012·Evolution; International Journal of Organic Evolution·Andrew R RaduskiBoris Igić
Apr 7, 2007·Current Biology : CB·Pei LiuJune B Nasrallah
Mar 14, 2018·International Journal of Molecular Sciences·Fan WangNianjun Teng
Apr 8, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A HorisakiS Niikura
Jun 20, 2018·Evolution; International Journal of Organic Evolution·April M RandleSusan Kalisz

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