Record Details

Inbreeding enhances field resistance to cassava brown streak viruses

CGSpace

View Archive Info
 
 
Field Value
 
Title Inbreeding enhances field resistance to cassava brown streak viruses
 
Creator Tadeo, K.
Vincent, K.
Yona, B.
Robert, K.
Ferguson, M.
 
Subject cassava
inbreeding
inbreeding depression
 
Description Cassava brown streak disease (CBSD) is currently the major disease affecting cassava production in Eastern and Southern Africa. Breeding for resistance has been hampered by a lack of sources of resistance and the complexity of CBSD. This study was initiated to assess the possibility of exploiting inbreeding, as a strategy for generating new sources of resistance to CBSD. This was based on the premise that inbreeding increases the additive variance upon which selection for desirable phenotypes can be made. Eight cassava progenitors (S0): Namikonga, 182/006661, Kigoma Red, Tz/130, Tz/140, 130040, 0040 and 100142 were selfed for one generation to produce the first inbred generation (S1). The S1 progenies generated were evaluated for two seasons (seedling and clonal evaluation trial) in a high CBSD pressure area. Promising clones were re-evaluated to confirm their CBSD reaction status. Results obtained showed that within each family, a few S1 inbreds (1-15) had higher levels of resistance compared to the S0 progenitors with the highest number observed in Tz/130. It is possible therefore to get transgressive progenies through inbreeding.
 
Date 2016-08-31
2016-08-09T12:52:40Z
2016-08-09T12:52:40Z
 
Type Journal Article
 
Identifier Tadeo, K., Vincent, K., Yona, B., Robert, K. & Ferguson, M. (2016). Inbreeding enhances field resistance to cassava brown streak viruses. Journal of Plant Breeding and Crop Science, 8(8), 138-149.
2006-9758
https://hdl.handle.net/10568/76361
https://doi.org/10.5897/jpbcs2015.0555
 
Language en
 
Rights Open Access
 
Format 138-149
application/pdf
 
Publisher Academic Journals
 
Source Journal of Plant Breeding and Crop Science