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Effects of Ppd alleles on heading and flowering time of wheat in climatic conditions of South-Eastern Europe

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2018
bitstream_5863.pdf (7.582Mb)
Authors
Kondić-Špika, Ankica
Trkulja, Dragana
Mikić, Sanja
Brbaklić, Ljiljana
Griffiths, Simon
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Abstract
Photoperiod response (Ppd) genes play a key role in fine-tuning of heading and flowering time and adaptation of wheat to different agro -climatic conditions, which could increase crop yield. The aim of this study was to analyse genotypes carrying different Ppd-1 alleles and their influence on wheat phenology in growing conditions of the South-Eastern Europe. The experiment was conducted with 10 well-adapted Serbian wheat varieties and 54 NILs of cv. Paragon with single, double and triple doses of Ppd-1 alleles. The genotypes were sown in the plot size of 2 m 2 at the location of Rimski Sancevi (45°20`N, 19°51`E), in randomized complete block design with 3 replications. Heading and flowering time were recorded during three growing seasons (2014, 2015 and 2017). The results showed that the genotype, growing season and their interactions had significant effects on both analysed traits. The Serbian varieties (set 1) were signific...antly earlier regarding the heading and flowering time than cv. Paragon, and most of the NILs. The NILs with introgressed single (set 2) insensitivity Ppd-1 alleles were earlier than the original cv. Paragon in 2014 and 2015, but not in 2017. When the same alleles were introgressed in a double dose (set 3), they significantly reduced heading and flowering time in all seasons. The NILs with introgressed Ppd-1 null alleles and knock-outs (set 4) were significantly later than cv. Paragon, and all other sets of genotypes. All indicated changes caused by different Ppd-1 alleles were variable expressed in different growing seasons.

Keywords:
wheat / Ppd allele / adaptation / phenology / heading and flowering time / randomized block / agro climatic conditions
Source:
Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania, 2018, 39-43
Publisher:
  • Seeland/OT Gatersleben : Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung
  • Fundulea : National Agricultural Research and Development Institute
Funding / projects:
  • Genetics and physiology of wheat development to flowering: tools to breed for improved adaptation and yield potential (EU-289842)
  • Modern breeding of small grains for present and future needs (RS-31066)
[ Google Scholar ]
URI
http://fiver.ifvcns.rs/handle/123456789/2179
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  • Radovi istraživača / Researchers' papers
Institution/Community
FiVeR
TY  - CONF
AU  - Kondić-Špika, Ankica
AU  - Trkulja, Dragana
AU  - Mikić, Sanja
AU  - Brbaklić, Ljiljana
AU  - Griffiths, Simon
PY  - 2018
UR  - http://fiver.ifvcns.rs/handle/123456789/2179
AB  - Photoperiod response (Ppd) genes play a key role in fine-tuning of heading and flowering time 
and adaptation of wheat to different agro -climatic conditions, which could increase crop yield. 
The  aim  of  this  study  was  to  analyse  genotypes  carrying  different  Ppd-1  alleles  and  their 
influence  on  wheat  phenology  in  growing  conditions  of  the  South-Eastern  Europe.  The 
experiment was conducted with  10 well-adapted Serbian wheat varieties and 54 NILs of cv. 
Paragon with single, double and triple doses of Ppd-1 alleles. The genotypes were sown in the 
plot size of 2 m
2 
at the location of Rimski Sancevi (45°20`N, 19°51`E), in randomized complete 
block  design  with  3  replications.  Heading  and  flowering  time  were  recorded  during  three 
growing seasons (2014, 2015 and 2017). The results showed that the genotype, growing season 
and their interactions had significant effects on both analysed traits. The Serbian varieties (set 
1) were significantly earlier regarding the heading and flowering time than cv. Paragon,   and 
most of the NILs. The NILs with introgressed single (set 2) insensitivity  Ppd-1  alleles were 
earlier than the original cv. Paragon in 2014 and 2015, but not in 2017. When the same alleles 
were introgressed in a double dose (set 3), they significantly  reduced heading and flowering 
time in all seasons. The NILs with introgressed  Ppd-1  null alleles and knock-outs (set 4) were 
significantly  later  than  cv.  Paragon,  and  all  other  sets  of  genotypes.  All  indicated  changes 
caused by different Ppd-1 alleles were variable expressed in different growing seasons.
PB  - Seeland/OT Gatersleben : Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung
PB  - Fundulea : National Agricultural Research and Development Institute
C3  - Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania
T1  - Effects of  Ppd  alleles on heading and flowering time of wheat in climatic conditions of  South-Eastern Europe
EP  - 43
SP  - 39
ER  - 
@conference{
author = "Kondić-Špika, Ankica and Trkulja, Dragana and Mikić, Sanja and Brbaklić, Ljiljana and Griffiths, Simon",
year = "2018",
abstract = "Photoperiod response (Ppd) genes play a key role in fine-tuning of heading and flowering time 
and adaptation of wheat to different agro -climatic conditions, which could increase crop yield. 
The  aim  of  this  study  was  to  analyse  genotypes  carrying  different  Ppd-1  alleles  and  their 
influence  on  wheat  phenology  in  growing  conditions  of  the  South-Eastern  Europe.  The 
experiment was conducted with  10 well-adapted Serbian wheat varieties and 54 NILs of cv. 
Paragon with single, double and triple doses of Ppd-1 alleles. The genotypes were sown in the 
plot size of 2 m
2 
at the location of Rimski Sancevi (45°20`N, 19°51`E), in randomized complete 
block  design  with  3  replications.  Heading  and  flowering  time  were  recorded  during  three 
growing seasons (2014, 2015 and 2017). The results showed that the genotype, growing season 
and their interactions had significant effects on both analysed traits. The Serbian varieties (set 
1) were significantly earlier regarding the heading and flowering time than cv. Paragon,   and 
most of the NILs. The NILs with introgressed single (set 2) insensitivity  Ppd-1  alleles were 
earlier than the original cv. Paragon in 2014 and 2015, but not in 2017. When the same alleles 
were introgressed in a double dose (set 3), they significantly  reduced heading and flowering 
time in all seasons. The NILs with introgressed  Ppd-1  null alleles and knock-outs (set 4) were 
significantly  later  than  cv.  Paragon,  and  all  other  sets  of  genotypes.  All  indicated  changes 
caused by different Ppd-1 alleles were variable expressed in different growing seasons.",
publisher = "Seeland/OT Gatersleben : Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung, Fundulea : National Agricultural Research and Development Institute",
journal = "Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania",
title = "Effects of  Ppd  alleles on heading and flowering time of wheat in climatic conditions of  South-Eastern Europe",
pages = "43-39"
}
Kondić-Špika, A., Trkulja, D., Mikić, S., Brbaklić, L.,& Griffiths, S.. (2018). Effects of  Ppd  alleles on heading and flowering time of wheat in climatic conditions of  South-Eastern Europe. in Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania
Seeland/OT Gatersleben : Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung., 39-43.
Kondić-Špika A, Trkulja D, Mikić S, Brbaklić L, Griffiths S. Effects of  Ppd  alleles on heading and flowering time of wheat in climatic conditions of  South-Eastern Europe. in Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania. 2018;:39-43..
Kondić-Špika, Ankica, Trkulja, Dragana, Mikić, Sanja, Brbaklić, Ljiljana, Griffiths, Simon, "Effects of  Ppd  alleles on heading and flowering time of wheat in climatic conditions of  South-Eastern Europe" in Proceedings of the 17th EWAC Eucarpia International Conference, 4-8. June 2018, Bucharest, Romania (2018):39-43.

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