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Titolo:
Detection of epistasis, and estimation of additive and dominance components of genetic variation for synchrony in pod maturity in mungbean (Vigna radiata (L.) Wilczek)
Autore:
Khattak, GSS; Haq, MA; Ashraf, M; Tahir, GR; Marwat, EUK;
Indirizzi:
Nucl Inst Food & Agr, NWFP, Peshawar, Pakistan Nucl Inst Food & Agr Peshawar Pakistan & Agr, NWFP, Peshawar, Pakistan Nucl Inst Agr & Biol, Faisalabad, Pakistan Nucl Inst Agr & Biol Faisalabad Pakistan r & Biol, Faisalabad, Pakistan Univ Agr Faisalabad, Dept Bot, Faisalabad, Pakistan Univ Agr Faisalabad Faisalabad Pakistan Dept Bot, Faisalabad, Pakistan
Titolo Testata:
FIELD CROPS RESEARCH
fascicolo: 3, volume: 72, anno: 2001,
pagine: 211 - 219
SICI:
0378-4290(20010928)72:3<211:DOEAEO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECOMBINANT INBRED LINES; PREDICTING PROPERTIES;
Keywords:
additive gene action; dominance gene action; epistasis; triple test cross;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Khattak, GSS Nucl Inst Food & Agr, NWFP, POB 446, Peshawar, Pakistan Nucl Inst Food & Agr POB 446 Peshawar Pakistan ar, Pakistan
Citazione:
G.S.S. Khattak et al., "Detection of epistasis, and estimation of additive and dominance components of genetic variation for synchrony in pod maturity in mungbean (Vigna radiata (L.) Wilczek)", FIELD CR RE, 72(3), 2001, pp. 211-219

Abstract

Genetics of days to first flowering, first pod maturity, 90% pod maturity,and duration of the period from first flower to 90% pod maturity (DDd(1)) and from first pod maturity to 90% pod maturity (DDd(2)) [degree of non-synchrony of pod maturity] were investigated in mungbean using the triple testcross (TTC) technique. Ten diverse genotypes were crossed with two true breeding testers (L-1 and L-2) and the FI hybrid of the tester lines (L-3). The resultant single and three-way crosses were evaluated in two seasons (kharif and spring/summer). Epistatic variation was found to be an integral part of inheritance of days to first flower in both seasons and days to first pod maturity only in kharif season. Further partitioning of total epistasis revealed that additivex additive (i type) interactions had a major role in the inheritance of these traits. In the absence of epistasis both additive and dominance genetic componentswere significant for days to 90% pod maturity, DDd(1), and DDd(2) in both seasons, and for days to first flower in spring/summer season. The additivegenetic component was predominant for days to 90% pod maturity and DDd(2) in both seasons and for DDd(1) in spring/summer season, whereas the dominance component was important for days to first flower and DDd(1), in the spring/summer season. The direction of dominance was towards early maturity of 90% pods and late maturity of the first pod. The significant additive genetic component in DDd(1) and DDd(2) could be exploited in later generations for developing mungbean genotypes with improved synchrony in pod maturity. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 03:47:44