Generation means analysis of wheat streak mosaic virus resistance in winter wheat

Hakizimana, Frederick; Ibrahim, Amir M. H.; Langham, M. A. C.; Rudd, Jackie C.; Haley, Scott D.

doi:10.1007/s10681-004-2490-y

Cited by 10 publications

(11 citation statements)

References 14 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Partial resistance or tolerance to WSMV has been reported for other wheat cultivars (Divis et al, 2006;Hakizimana et al, 2004;Rahman et al, 1974;Seifers and Martin 1988), but information on genetics of this type of resistance is lacking. Karl 92 had the highest disease scores, while the three resistant genotypes had very low disease scores.…”

Section: Discussionmentioning

confidence: 99%

A Dominant Gene for Resistance to Wheat Streak Mosaic Virus in Winter Wheat Line CO960293‐2

Price

Devkota

et al. 2011

Crop Science

View full text Add to dashboard Cite

Wheat streak mosaic (WSM), caused by Wheat streak mosaic virus (WSMV), is a devastating disease in wheat (Triticum aestivum L.) in the Great Plains of North America. Use of resistance is an effective and environmentally sound method to control the disease. In this study, six wheat genotypes were compared for their responses to WSMV infection under growth chamber conditions. The three resistant genotypes, KS96HW10‐3 (Wsm1), Mace (Wsm1), and CO960293‐2, had disease scores significantly lower than the remaining three genotypes without major resistance. Disease in TAM 111 and TAM 112 was consistently less severe than Karl 92. A population consisting of 188 F2:3 families derived from the cross CO960293‐2 × TAM 111 was used for determining inheritance of the WSMV resistance and for molecular mapping of the resistance in CO960293‐2. Data on segregation of resistance indicated that the resistance in CO960293‐2 is conditioned by a single dominant gene, which was named Wsm2 Transgressive segregation toward susceptibility occurred in the population suggesting a minor gene in the moderately susceptible parent TAM 111, which was not allelic to Wsm2. Wsm2 was mapped to the short arm of chromosome 3B with two flanking simple sequence repeat markers. The single dominant gene inheritance for WSMV resistance in CO960293‐2 has been consistent with the observations that the resistance can be readily transferred to adapted cultivars.

show abstract

Section: Discussionmentioning

confidence: 99%

A Dominant Gene for Resistance to Wheat Streak Mosaic Virus in Winter Wheat Line CO960293‐2

Price

Devkota

et al. 2011

Crop Science

View full text Add to dashboard Cite

show abstract

“…Estimates of the broad-sense and narrow-sense heritabilities on seed color in Capsicum (Zewdie and Bosland 2003) and wheat streak mosaic virus resistance in winter wheat (Hakizimana et al 2004) using generation means analysis did not refer to any segregating populations. However, the estimates of the heritabilities generated by the triploid model provided more information in each of the segregating population.…”

Section: Discussionmentioning

confidence: 99%

Genetic analysis of high amylose content in maize (Zea mays L.) using a triploid endosperm model

Campbell

Yen

et al. 2008

Euphytica

View full text Add to dashboard Cite

Traditionally, high amylose starch (HAS) from maize (Zea mays L.) has been mainly used as an ingredient in gum candies and as an adhesive for corrugated cardboard. Two recent advances have increased interest in the use of HAS. The first one has been the development of starch-based biodegradable thermo plastics. Second, high amylose maize is a source of resistant starch (RS), a type of starch that resists digestion. As a food additive, consumers can benefit from added RS since it will lower the glycemic index and the risk of colon cancer in accordance with recent research in food science. Normal maize has about 25% amylose starch. A maize inbred line, GEMS-0067 (Reg. no GP-550, PI 643420) possesses high amylose modifier gene(s) that, together with the recessive amylose extender (ae) gene, raises the starch amylose percentage to at least 70%. The objective of this study was to determine the gene effects, nonallelic interactions and heritability of high amylose content in maize using Bogyo's triploid model. Nine populations were derived from a cross between H99ae, a maize inbred line with 55% amylose starch, and GEMS-0067. Data were collected from two locations in Missouri (MO) and South Dakota (SD) over 2 years (2005 and 2006). Incomplete dominance explained some of the inheritance of HAS. Maternal effects were also detected. The triploid models for MO and SD were separately established based on the corresponding data in 2005 and 2006. The additive and type 1 dominance effects in MO, and the additive, type 1 dominance, type 2 dominance, and additive 9 additive in SD were significantly different from zero meaning that those effects played an important role in amylose synthesis. Both broad-sense and narrowsense heritabilities were high indicating that high amylose content could be effectively selected for in a segregating population.

show abstract

“…Firstly, Kalloo et al (1974) have suggested that the presence of highly significant gca and sca variances for a majority of traits is an indication of the importance of both additive and non-additive genes. Secondly, Hakizimana et al (2004) and Kenga et al (2004) have argued that non-additive gene effects are predominant. Thirdly, Romanus et al (2008) and also Satija and Thukral (1985) have provided evidence for the greater importance of additive gene action in hybrid breeding outcomes.…”

Section: Generation Means and Heterosis Analysis Of Zinnia Elegansmentioning

confidence: 99%

Analysis of combining ability of two-types of male sterile and four restorer lines of Zinnia elegans

et al. 2010

View full text Add to dashboard Cite

Eight cross combinations of Zinnia elegans were made using two recessive nuclear male sterile lines crossed with four restorers using the North Carolina Design II statistical method. Heterosis, combining ability and heritability was analysed using 12 horticultural traits and these demonstrated the advantage of heterosis in hybrid breeding of Zinnia elegans. Heterosis served to increase the number of whorls of ray florets across capitulum and the number of branches, and also decreased plant height, crown size, pedicel length and length of node. Thus, six horticultural traits were improved over mid parent and best parent status to fulfill major breeding goals of this herbaceous flower. The traits of plant height, number of whorls of ray florets across capitulum and pedicel length were primarily controlled by paternal additive effects, whereas crown size was mainly controlled by non-additive effects. Number of branches and length of node were affected both by paternal additive effects and non-additive effects. The ratio of general combining ability to specific combining ability indicated the importance of additive genes in the expression of these traits. Among the parental lines, AH003A and restorer A3 were chosen as primary female and male combiners, respectively. AH001A and restorer S5 were chosen as secondary combiners. The cross AH003A 9 A3 was determined as the most promising combination for producing potted plant characteristics, and AH001A 9 S5 was the best hybrid obtained in this study for cut flower traits. The analysis of combining ability for the parental lines showed that there was no causal relationship between general combining ability and specific combining ability effects.

show abstract

Generation means analysis of wheat streak mosaic virus resistance in winter wheat

Cited by 10 publications

References 14 publications

A Dominant Gene for Resistance to Wheat Streak Mosaic Virus in Winter Wheat Line CO960293‐2

A Dominant Gene for Resistance to Wheat Streak Mosaic Virus in Winter Wheat Line CO960293‐2

Genetic analysis of high amylose content in maize (Zea mays L.) using a triploid endosperm model

Analysis of combining ability of two-types of male sterile and four restorer lines of Zinnia elegans

Contact Info

Product

Resources

About