Title:	Relationship between molecular markers and incompatibility in Theobroma cacao L.
Authors:	YAMADA, M. M. FALEIRO, F. G. CLEMENT, D. P. L. LOPES, U. V. PIRES, J. L. MELO, G. R. P.
Affiliation:	MILTON MACOTO YAMADA, COMISSÃO EXECUTIVA DO PLANO DA LAVOURA CACAUEIRA; FABIO GELAPE FALEIRO, CPAC; DIDIER PIERRE LOUIS CLEMENT, COMISSÃO EXECUTIVA DO PLANO DA LAVOURA CACAUEIRA; UILSON VANDERLEI LOPES, COMISSÃO EXECUTIVA DO PLANO DA LAVOURA CACAUEIRA; JOSÉ LUIS PIRES, COMISSÃO EXECUTIVA DO PLANO DA LAVOURA CACAUEIRA; GILSON ROBERTO PIRES MELO, COMISSÃO EXECUTIVA DO PLANO DA LAVOURA CACAUEIRA.
Date Issued:	2010
Citation:	Agrotropica, v. 22, n. 2, p. 71-74, 2010.
Description:	The objective of the present work was to see the relationship of molecular markers and incompatibility and try to elucidate the mechanism and inheritance of incompatibility. The clone Sca 6 is selfincompatible and ICS 1 selfcompatible and it is expected that F2 of this progenies segregate for selfcompatible plants. Self pollinations were evaluated in 68 F2 plants obtained by selfing TSH 516 ( SCA 6 x ICS 1). The pollinations that reached 5% of setting were considered selfcompatible. The markers utilized were, 232 RAPD, 77 AFLP and 33 microsatellites markers in the total of 342 markers. The X² was utilized to test the 3:1 segregation. Regression analysis were utilized to see molecular markers that is correlated to self-incompatible characteristic. From 68 plant evaluations, 25 were selfcompatible and 43 selfincompatible. The X² test indicated 3:1 segregation distortion at 5% level. For the regression analysis using 342 molecular markers, 19 were significative at 5 %. Two of the most significative were sAU17960 and mTcCIR46 , respectively 40% and 17,6% of R² .This results showed that probably more than one locus is involved for incompatibility reaction in the case of ICS 1. It is interesting to test these 19 potential candidate in larger populations and also in other populations
Thesagro:	Cacau Theobroma Cacao
Keywords:	Molecular markers Genetic mapping
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAC)