dc.contributor.author | Wachira, Francis N. | |
dc.contributor.author | Kamunya, S. M. | |
dc.contributor.author | Kireger, E. K. | |
dc.contributor.author | Sharma, R. S. | |
dc.contributor.author | Korir, R. | |
dc.contributor.author | Maritim, T. | |
dc.contributor.author | Kiplang’at, J. | |
dc.contributor.author | Sharma, V. | |
dc.contributor.author | Chalo, R. | |
dc.contributor.author | Ahuja, P. S. | |
dc.date.accessioned | 2017-02-20T07:51:34Z | |
dc.date.available | 2017-02-20T07:51:34Z | |
dc.date.issued | 2017-02-20 | |
dc.identifier.uri | http://karuspace.karu.ac.ke:8080/xmlui/bitstream/handle/123456789/296/Genetic%20mapping%20and%20identification%20of%20quantitative.pdf?sequence=1 | |
dc.identifier.uri | http://repository.seku.ac.ke/handle/123456789/3120 | |
dc.description.abstract | Accelerated breeding and selection of improved tea ( Camellia sinensis (L.) O. Kuntze) cultivars requires sound knowledge and understanding of genetics associated with desirable attributes. Quantitative trait loci ( Q TL) mapping for yield and drought tolerance in tea was performed using 42 F 1 clonal progeny derived from a cross between tea cultivars TRFCA SFS150 and AHP S15/10 that had been established at two distinct tea growing regions in Kenya. The 100 informative markers identified in the cross that exhibited 1:1 segregation ratio were used to construct a linkage map of tea. The map consisted of 30 (19 maternal and 11 paternal) linkage groups that spanned 1411.5 cM with mean interval of 14.7 cM between loci. Q TL analysis was carried out for yield and drought tolerance produced nine putative yield Q TLs and 13 Q TLs for drought tolerance. None of the Q TLs was congruently detected in the two sites owing to G x E interactions. Markers OPT-18- 2500 and OPO-02-900 had pleiotropic effects in that they were significantly associated with yield at Timbilil (YLD-T; P = 0.007) and drought tolerance at Kangaita (DT-K; P = 0.003). The implications of the current study with respect to mapping population, G x E and marker-assisted selection are discussed. | |
dc.language.iso | en | en_US |
dc.subject | Camellia sinensis | en_US |
dc.subject | Drought tolerance | en_US |
dc.subject | Kenya | en_US |
dc.subject | QTL mapping | en_US |
dc.subject | Yield | en_US |
dc.title | Genetic mapping and identification of quantitative trait loci for yield and drought tolerance in tea | en_US |
dc.type | Article | en_US |