Distribution of different Vrn-B1 alleles in hexaploid spring wheat germplasm

Milec, Zbyněk; Sumíková, T.; Tomková, Lenka; Pánková, Kateřina

doi:10.1007/s10681-013-0863-9

Cited by 24 publications

(22 citation statements)

References 16 publications

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“…The present study updates earlier data on the distribution of vernalization genes in selected cultivars (Milec et al 2013). DNA was extracted from five different fresh wheat leaves from individuals of each variety using a modified cetyltrimethylammonium bromide method (Doyle & Doyle 1987).…”

Section: Cultivarssupporting

confidence: 60%

“…The vernalisation response is mostly controlled by the homoeoloci Vrn-A1, Vrn-B1, and Vrn-D1, which have been mapped to the long arms of chromosomes 5A, 5B, and 5D, respectively (Sarma et al 1998;Leonova et al 2003;Shindo et al 2003). Breeding for decreased/increased flowering time changes the length of the vegetation period (Cockram et al 2007;Milec et al 2013).…”

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confidence: 99%

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Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Trávníčková¹,

Pánková²,

Martinková³

et al. 2016

Plant Prot. Sci.

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Trávníčková M., Pánková K., Martinková Z., Honěk A. (2016): Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance. Plant Protect. Sci., 52: 254-261.Maximum aphid numbers on wheat are positively related to the length of the period elapsed from immigration to the population peak. We predicted that maximum abundances on late maturing cultivars would be greater than on early ones. This was tested using 8 spring wheat cultivars that differed in the length of time to senescence. In a 4-year experiment, numbers of aphids were checked at weekly intervals. Maximum abundances on late-maturing cultivars were significantly greater than those on early cultivars. However, the length of the vegetation period affected maximum abundances less than did the annual variation in aphid abundance. Genetic disposition for early ripening thus tends to decrease aphid numbers, but manipulation of this character is unlikely to become an important source of aphid resistance.

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Section: Cultivarssupporting

confidence: 60%

mentioning

confidence: 99%

Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Trávníčková¹,

Pánková²,

Martinková³

et al. 2016

Plant Prot. Sci.

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“…; Milec et al . ). Notably, in all three VRN1 genes, the basis of the dominant spring growth habit alleles is a large deletion which occurred in intron1.…”

Section: Introductionmentioning

confidence: 97%

“…The functional polymorphisms in these plant developmental genes have been studied in detail. In the case of VRN1, various sequence differences were detected in the promoter, exon1 and intron1 regions of VRN-A1, but fewer polymorphisms have been found in VRN-B1 and VRN-D1 (Yan et al 2004;Fu et al 2005;Milec et al 2013). Notably, in all three VRN1 genes, the basis of the dominant spring growth habit alleles is a large deletion which occurred in intron1.…”

Section: Introductionmentioning

confidence: 99%

Effects of ambient temperature in association with photoperiod on phenology and on the expressions of major plant developmental genes in wheat (Triticum aestivum L.)

Kiss

Dixon

Soltész

et al. 2017

Plant Cell & Environment

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In addition to its role in vernalization, temperature is an important environmental stimulus in determining plant growth and development. We used factorial combinations of two photoperiods (16H, 12H) and three temperature levels (11, 18 and 25 °C) to study the temperature responses of 19 wheat cultivars with established genetic relationships. Temperature produced more significant effects on plant development than photoperiod, with strong genotypic components. Wheat genotypes with PPD-D1 photoperiod sensitive allele were sensitive to temperature; their development was delayed by higher temperature, which intensified under non-inductive conditions. The effect of temperature on plant development was not proportional; it influenced the stem elongation to the largest extent, and warmer temperature lengthened the lag phase between the detection of first node and the beginning of intensive stem elongation. The gene expression patterns of VRN1, VRN2 and PPD1 were also significantly modified by temperature, while VRN3 was more chronologically regulated. The associations between VRN1 and VRN3 gene expression with early apex development were significant in all treatments but were only significant for later plant developmental phases under optimal conditions (16H and 18 °C). Under 16H, the magnitude of the transient peak expression of VRN2 observed at 18 and 25 °C associated with the later developmental phases.

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“…, Milec et al. ). The differential vernalization requirements of the dominant alleles result in variation in the flowering time of spring wheat (Stelmakh ).…”

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confidence: 99%

Effect of VRN‐1 and PPD‐D1 genes on heading time in European bread wheat cultivars

2014

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The variation of the vernalization (VRN-1) and photoperiod (PPD-1) genes offers opportunities to adjust heading time and to maximize yield in crop species. The effect of these genes on heading time was studied based on a set of 245 predominantly spring cultivars of bread wheat from the main eco-geographical regions of Europe. The genotypes were screened using previously published diagnostic molecular markers for detecting the dominant or recessive alleles of the major VRN-1 loci such as: VRN-A1, VRN-B1, VRN-D1 as well as PPD-D1. We found that 91% of spring wheat cultivars contain the photoperiod sensitive PPD-D1b allele. Photoperiod insensitive PPD-D1a allele has been found mainly in southern region of Europe. For this region the monogenic control of vernalization by VRN-B1 or VRN-D1 dominant alleles is common, whereas in the remaining part of Europe, the combination of photoperiod sensitive PPD-D1b allele with dominant VRN-A1, VRN-B1 and recessive vrn-D1 alleles represents the most frequent genotype. Also, we revealed a significantly later (5-8 days) heading of the monogenically dominant genotypes at VRN-B1 as compared to the digenic VRN-A1 VRN-B1 genotypes.

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Distribution of different Vrn-B1 alleles in hexaploid spring wheat germplasm

Cited by 24 publications

References 16 publications

Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Effects of ambient temperature in association with photoperiod on phenology and on the expressions of major plant developmental genes in wheat (Triticum aestivum L.)

Effect of VRN‐1 and PPD‐D1 genes on heading time in European bread wheat cultivars

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