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Titolo:
Mapping boron efficiency gene(s) in Brassica napus using RFLP and AFLP markers
Autore:
Xu, FS; Wang, YH; Meng, J;
Indirizzi:
Huazhoung Agr Univ, Lab Plant Microelect, Wuhan 430070, Peoples R China Huazhoung Agr Univ Wuhan Peoples R China 430070 430070, Peoples R China Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China Huazhong Agr Univ Wuhan Peoples R China 430070 n 430070, Peoples R China
Titolo Testata:
PLANT BREEDING
fascicolo: 4, volume: 120, anno: 2001,
pagine: 319 - 324
SICI:
0179-9541(200108)120:4<319:MBEGIB>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTITATIVE TRAIT LOCUS; ARABIDOPSIS-THALIANA; TOMATO; GENOME; OLERACEA; DNA; IDENTIFICATION; POPULATION; ALIGNMENT; CROSSES;
Keywords:
Brassica napus; boron efficiency; molecular marker; QTL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Xu, FS Huazhoung Agr Univ, Lab Plant Microelect, Wuhan 430070, Peoples R China Huazhoung Agr Univ Wuhan Peoples R China 430070 , Peoples R China
Citazione:
F.S. Xu et al., "Mapping boron efficiency gene(s) in Brassica napus using RFLP and AFLP markers", PLANT BREED, 120(4), 2001, pp. 319-324

Abstract

Soil boron (B) deficiency, a world-wide problem in agriculture, exists formore than 33 million hectares of cultivated land in China. Genetic variation exists for B-cfflciency among different Brassica napus germplasms. To identify genes controlling B efficiency, an F-2 population of B. napus was constructed from a cross between a high B-efficiency cultivar, 'Qingyou 10', and a low B-efficiency cultivar, 'Bakow', and then evaluated for seed yield, bolting date and maturity date under B-deficient conditions. The ratio ofhigh B-efficiency to low B-efficiency individuals fitted the expected ratio of 3 : 1, indicating a major gene controlling the B-efficiency trait. Themajor gene was mapped in the ninth linkage group of B. napus. Genome-wide quantitative trait loci (QTL) analyses detected one major locus near the major gene, which explained 64.0% of the phenotypic variance, At the same time, three minor loci in three linkage groups were also detected, and these minor loci individually explained 39.2%, 32.5% and 36.9%, respectively, of the phenotypic variance. A total of 11 QTLs were detected for bolting date and maturity date, some of which were associated with B-efficiency.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 02:19:12