Effect of chromosome 3B gene/s of Česk&aacute; Přes&iacute;vka on vernalisation response, photoperiod sensitivity and earliness of wheat

Substitution lines with the chromosome 3B of the Czech alternative cultivar Česká Přesívka (CP) in the genetic background of the wheat cultivars Zdar, Vala, Ko&scaron;utka, Jara and Sandra, differing in their requirements of vernalisation and photoperiod, were compared with the original cultivars under short and long photoperiod, to evaluate the effects of genes, located on the chromosome 3B of CP, on earliness and the response to photoperiod and vernalisation. The results suggest that these genes have only a small effect upon the vernalisation requirement, but are more related to the response to photoperiod. However, the genes on the substituted chromosome appear to influence the earliness per se and very likely interact also with the photoperiodic response.  

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The relationship among freezing tolerance, vernalization requirement, Ppd alleles and winter hardiness in European wheat cultivars

The Journal of Agricultural Science ◽

10.1017/s0021859617000521 ◽

2017 ◽

Vol 155 (9) ◽

pp. 1353-1370 ◽

Cited By ~ 5

Author(s):

A. GORASH ◽

R. ARMONIENĖ ◽

Ž. LIATUKAS ◽

G. BRAZAUSKAS

Keyword(s):

Molecular Markers ◽

Western Europe ◽

Complex Trait ◽

Winter Hardiness ◽

Photoperiod Sensitivity ◽

The Other ◽

Wheat Cultivars ◽

Crucial Component ◽

Per Se ◽

The Relationship

SUMMARYWinter hardiness of wheat is a complex trait involving a system of structural, regulatory and developmental genes, which interact in a complex pathway. The objective of the present work was to study the relationship among the main traits determining the level of adaptation and the possibility for target manipulation of breeding material by using molecular markers and phenological parameters. Wheat cultivars from different ecoclimatic environments of Europe were included for analysis. Gene-specific assay showed that photoperiod sensitivity of the studied cultivars was determined by polymorphism in the Ppd-D1 allele. The study established the relationship among winter hardiness, LT50 (the temperature at which 50% of plants are killed), photoperiod sensitivity, vernalization duration and earliness per se genes in the environment of Lithuania. The cultivars from Northern and Western Europe exhibited stronger requirement for vernalization and photoperiod. Although the group of cultivars from the southern latitudes were characterized by earliness, they possessed a stronger level of LT50. The level of LT50 was found to be the most crucial component of winter hardiness, the other traits served as supplementary components.

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Effect of Vrn-1, Ppd-1 genes and earliness per se on heading time in Argentinean bread wheat cultivars

Field Crops Research ◽

10.1016/j.fcr.2013.12.023 ◽

2014 ◽

Vol 158 ◽

pp. 73-81 ◽

Cited By ~ 25

Author(s):

D. Gomez ◽

L. Vanzetti ◽

M. Helguera ◽

L. Lombardo ◽

J. Fraschina ◽

...

Keyword(s):

Bread Wheat ◽

Wheat Cultivars ◽

Heading Time ◽

Earliness Per Se ◽

Per Se

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Responses of Some Turkish Wheat Cultivars to Vernalization and Photoperiod

Experimental Agriculture ◽

10.1017/s0014479700015982 ◽

1988 ◽

Vol 24 (2) ◽

pp. 237-245

Author(s):

Serpil Terzioğlu

Keyword(s):

Bread Wheat ◽

Normal Development ◽

Photoperiodic Response ◽

Reliable Information ◽

Floral Initiation ◽

Wheat Cultivars ◽

Primary Shoot ◽

Time Of Year ◽

Short Days

SUMMARYThe vernalization and photoperiodic response of six locally adapted bread wheat cultivars grown under natural daylength conditions during the summer or winter months was examined in glasshouse experiments. The wheat was vernalized by chilling imbibed grains at 2 ± 1°C for 0, 15 or 45 days. Vernalization for 45 days followed by long summer days led to floral initiation in all cultivars within 28 days but vernalization for 0 or 15 days only led to floral initiation in one cultivar. Vernalization followed by long days reduced the time from transplanting to anthesis, resulting in early ear emergence. Vernalization followed by short days accelerated the development of all the cultivars, but normal development could also occur without vernalization at this time of year. Apical differentiation of the primary shoot and its length and development gave the most reliable information on the period of vernalization required.

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Genetic mapping of the ScHd1 gene in rye and an assessment of its relationship with earliness per se and plant morphology

Journal of Applied Genetics ◽

10.1007/s13353-014-0223-z ◽

2014 ◽

Vol 55 (4) ◽

pp. 469-473 ◽

Cited By ~ 5

Author(s):

Sandra Święcka ◽

Marcin Berdzik ◽

Beata Myśków

Keyword(s):

Genetic Mapping ◽

Plant Morphology ◽

Earliness Per Se ◽

Per Se

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Validation of a 1DL earliness per se (eps) flowering QTL in bread wheat (Triticum aestivum)

Molecular Breeding ◽

10.1007/s11032-014-0094-3 ◽

2014 ◽

Vol 34 (3) ◽

pp. 1023-1033 ◽

Cited By ~ 33

Author(s):

Meluleki Zikhali ◽

Michelle Leverington-Waite ◽

Lesley Fish ◽

James Simmonds ◽

Simon Orford ◽

...

Keyword(s):

Triticum Aestivum ◽

Bread Wheat ◽

Earliness Per Se ◽

Per Se

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Earliness per se×temperature interaction: consequences on leaf, spikelet, and floret development in wheat

Journal of Experimental Botany ◽

10.1093/jxb/erz568 ◽

2019 ◽

Vol 71 (6) ◽

pp. 1956-1968 ◽

Cited By ~ 1

Author(s):

Paula Prieto ◽

Helga Ochagavía ◽

Simon Griffiths ◽

Gustavo A Slafer

Keyword(s):

Temperature Sensitivity ◽

Flag Leaf ◽

Near Isogenic Lines ◽

Earliness Per Se ◽

Temperature Regimes ◽

Significant Difference ◽

Number Of Leaves ◽

Per Se ◽

Temperature Interaction ◽

Leaf Appearance

Abstract Wheat adaptation can be fine-tuned by earliness per se (Eps) genes. Although the effects of Eps genes are often assumed to act independently of the environment, previous studies have shown that they exhibit temperature sensitivity. The number of leaves and phyllochron are considered determinants of flowering time and the numerical components of yield include spikelets per spike and fertile floret number within spikelets. We studied the dynamics of leaf, spikelet, and floret development in near isogenic lines with either late or early alleles of Eps-D1 under seven temperature regimes. Leaf appearance dynamics were modulated by temperature, and Eps alleles had a greater effect on the period from flag leaf to heading than phyllochron. In addition, the effects of the Eps alleles on spikelets per spike were minor, and more related to spikelet plastochron than the duration of the early reproductive phase. However, fertile floret number was affected by the interaction between Eps alleles and temperature. So, at 9 °C, Eps-early alleles had more fertile florets than Eps-late alleles, at intermediate temperatures there was no significant difference, and at 18 °C (the highest temperature) the effect was reversed, with lines carrying the late allele producing more fertile florets. These effects were mediated through changes in floret survival; there were no clear effects on the maximum number of floret primordia.

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