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Comparison of Selection Efficiency between Marker-Assisted Selection and Phenotypic Selection for Development of Brown Planthopper Resistance Lines in Rice  

Kim, Suk-Man (Department of Agronomy, Kyungpook National University)
Sohn, Jae-Keun (Department of Agronomy, Kyungpook National University)
Publication Information
Korean Journal of Breeding Science / v.40, no.1, 2008 , pp. 48-53 More about this Journal
Abstract
This study presents a case study designed to compare the selection efficiency between phenotypic selection (PS) and marker-assisted selection (MAS) in breeding of resistance lines to brown planthopper (BPH). The efficiency between PS and MAS were compared with four population such as the $F_2$, RILs ($F_6$), DH, and backcrosse ($BC_6F_5$) population, derived from a cross 'Samgang / Nagdong'. The resistance lines were selected using two markers, RM28493 and BpE18-3, related to BPH resistance were screened as resistance lines over 95% in PS. The costs required for BPH screening in the MAS system account for approximately 32% of the total costs of PS. The period needed to select the resistance plants was 30 days in PS and 7 days in MAS. Based on the results, we could establish the breeding system for selection of BPH resistance lines by MAS.
Keywords
BPH; MAS; selection efficiency; rice;
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Times Cited By KSCI : 2  (Citation Analysis)
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