Transgressive segregation for phenological traits in barley explained by two major QTL alleles with additivity

被引：15

作者：

Castro, A. J. ^{[1
]}

Hayes, P. ^{[2
]}

Viega, L. ^{[3
]}

Vales, I. ^{[2
]}

机构：

[1] Univ Republ, Fac Agron, Dept Prod Vegetal, Paysandu 60000, Uruguay

[2] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA

[3] Univ Republica, Fac Agron, Dept Biol Vegetal, Montevideo 12900, Uruguay

来源：

PLANT BREEDING | 2008年 / 127卷 / 06期

关键词：

barley; phenology; flowering time; quantitative trait loci;

D O I：

10.1111/j.1439-0523.2008.01520.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Quantitative trait loci (QTL) analysis can contribute to a deeper understanding of crop phenology. The parents of a barley mapping population have similar growth and development profiles, but the progeny show transgressive segregation for phenological traits. These phenotypes were measured in eight field experiments, using different planting dates over 3 years. Five QTL, on four chromosomes, were detected for anthesis date. The four maturity QTL were on the same chromosomes as the anthesis QTL. Five QTL for grain filling were detected on all chromosomes. Three QTL, on chromosomes 1H and 2H, were detected for photoperiod sensitivity. Both parents contributed higher value alleles for all traits, except for photoperiod sensitivity. QTL epistasis was not significant. Two QTL explained most of the phenotypic variation for anthesis and physiological maturity. Non-parental combinations of alleles at these loci account for the phenotypic transgressive segregation. Candidate genes for these QTL effects are eps2S (2H) and denso (3H). QTL for other traits had smaller effects and were coincident with genes and/or QTL for the same traits reported in other germplasm.

引用

页码：561 / 568

页数：8

共 31 条

[1] LOCALIZATION OF QUANTITATIVE TRAIT LOCI (QTL) FOR AGRONOMIC IMPORTANT CHARACTERS BY THE USE OF A RFLP MAP IN BARLEY (HORDEUM-VULGARE L) [J].

BACKES, G ;

GRANER, A ;

FOROUGHIWEHR, B ;

FISCHBECK, G ;

WENZEL, G ;

JAHOOR, A .

THEORETICAL AND APPLIED GENETICS, 1995, 90 (02) :294-302

[2] Marker regression mapping of QTL controlling flowering time and plant height in a spring barley (Hordeum vulgare L) cross [J].

Bezant, J ;

Laurie, D ;

Pratchett, N ;

Chojecki, J ;

Kearsey, M .

HEREDITY, 1996, 77 :64-73

[3] Conventional and molecular genetic analysis of factors contributing to variation in the timing of heading among spring barley (Hordeum vulgare L.) genotypes grown over a mild winter growing season [J].

Boyd, WJR ;

Li, CD ;

Grime, CR ;

Cakir, M ;

Potipibool, S ;

Kaveeta, L ;

Men, S ;

Kamali, MRJ ;

Barr, AR ;

Moody, DB ;

Lance, RCM ;

Logue, SJ ;

Raman, H ;

Readj, BJ .

AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 2003, 54 (11-12) :1277-1301

[4]

Castro A., 1997, Agrociencia (Montevideo), V1, P80

[5] Quantitative trait loci associated with resistance to Fusarium head blight and kernel discoloration in barley [J].

de la Pena, RC ;

Smith, KP ;

Capettini, F ;

Muehlbauer, GJ ;

Gallo-Meagher, M ;

Dill-Macky, R ;

Somers, DA ;

Rasmusson, DC .

THEORETICAL AND APPLIED GENETICS, 1999, 99 (3-4) :561-569

[6] ENVIRONMENTAL-CONTROL OF FLOWERING IN BARLEY (HORDEUM-VULGARE) .3. ANALYSIS OF POTENTIAL VERNALIZATION RESPONSES, AND METHODS OF SCREENING GERMPLASM FOR SENSITIVITY TO PHOTOPERIOD AND TEMPERATURE [J].

ELLIS, RH ;

SUMMERFIELD, RJ ;

ROBERTS, EH ;

COOPER, JP .

ANNALS OF BOTANY, 1989, 63 (06) :687-704

[7]

FRANCKOWIAK JD, 2004, CZECH J GENET PLANT, V40, P44

[8]

Franckowiak JD., 2002, BARLEY GENET NEWSL, V32, P86

[9] INTERACTIONS AMONG LOCI CONFERRING PHOTOPERIOD INSENSITIVITY FOR HEADING TIME IN SPRING BARLEY [J].

GALLAGHER, LW ;

SOLIMAN, KM ;

VIVAR, H .

CROP SCIENCE, 1991, 31 (02) :256-261

[10]

GERMAN S, 2000, BARLEY GENETICS 8, V3, P212

← 1 2 3 4 →