Back to Search Start Over

Inheritance of tolerance to Cowpea Mild Mottle Virus in soybean.

Authors :
Arias, Carlos A. Arrabal
Almeida, Alvaro M. R.
Mituti, Tatiana
Kitajima, Elliot W.
Source :
Crop Breeding & Applied Biotechnology. 2015, Vol. 15 Issue 3, p132-138. 7p. 3 Charts, 2 Graphs.
Publication Year :
2015

Abstract

Soybean stem necrosis is caused by Cowpea mild mottle virus (CPMMV) and it has been recognized as an emerging and economically important disease in Brazil. No resistant, but only tolerant cultivars have been identified so far, and their genetic control is still unknown. To investigate the inheritance of soybean tolerance to CPMMV, two crosses between tolerant cultivars (BRS 133 x BRSMT Pintado), and between a susceptible (CD 206) and a tolerant cultivar (BRSMT Pintado) were carried out to obtain F2 and F2:3 generations. Quantitative and qualitative analyses applied to the data from greenhouse evaluations showed that there are at least two distinct major genes determining tolerance to CPMMV, one in the soybean cultivar BRS 133 and another in the cultivar BRSMT Pintado, with predominance of additive genetic effects and heritability levels that allow for efficient selection based on early generation means. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15187853
Volume :
15
Issue :
3
Database :
Academic Search Index
Journal :
Crop Breeding & Applied Biotechnology
Publication Type :
Academic Journal
Accession number :
108722346
Full Text :
https://doi.org/10.1590/1984-70332015v15n3a24