Functional Genomics of Flowering Time in Trees

Hanke, Magda‐Viola; Flachowsky, Henryk; Hoenicka, Hans; Fladung, Matthias

doi:10.1007/978-1-4614-0920-5_3

Cited by 7 publications

(4 citation statements)

References 135 publications

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“…The cultivars also accumulated lower heat units with higher requirement of chilling as compared to cultivars with higher requirements of chilling. Hanke et al (2007) stated that alteration in exogenous factors such as chilling temperature during the winter season resulting in the variation in flower bud formation. A variation of about 48-50 % was observed in accumulated GDD for fruit setting in different cultivars of apple.…”

Section: Energy Use Efficienciesmentioning

confidence: 99%

Pheno-thermal response of exotic high density apple varieties under temperate conditions of Kashmir

QAYOOM¹,

Mushtaq

Kumar

et al. 2022

J. Agrometeorol.

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The present study evaluated the effect of mean temperature and rainfall on phenology attainment of twenty cultivars of apple grown temperate region of Kashmir, India during 2018 and 2019. The results showed that increase in accumulated heat units decreased the time for attainment of phenological stages. The minimum requirement of heat units were recorded in Elstar (17 day 0C), Jona gold (18 day 0C) and Red braeburn (18 day 0C) for attainment of silver tip stage while as dormancy break was recorded earliest in cv. Red braeburrn and Red velox. The attainment of pink bud stage was recorded earliest in Red delicious followed by Elrosa and Gala redlum. However, fruit setting was found earlier in cv. Jona gold (50.1 day 0C) and late in Gala redlum and Gala mast. Highest heliothermal units were found in cv. Gala Mast (478 day 0C h) and Braeburn (461 day 0C h) and lowest in Jona gold (336 day 0C h) while as maximum hydrothermal units were found in Gala red (484 day 0C h) and Gala mast (471 day 0C h). Yield and yield associated traits were also found significantly influenced by accumulated heat units with maximum yield recorded in cv. Golden clone B (90.54 t ha-1) followed by Gala redlum (75.93 t/ha) and Red chief (71.13 t ha-1) with maximum heliothermal use efficiency (0.22), heat use efficiency (1.46) and hydrothermal use efficiency (0.22), respectively.

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Section: Energy Use Efficienciesmentioning

confidence: 99%

Pheno-thermal response of exotic high density apple varieties under temperate conditions of Kashmir

QAYOOM¹,

Mushtaq

Kumar

et al. 2022

J. Agrometeorol.

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“…During the first season, flower induction, initiation and organ differentiation take place in summer, and most shoot meristems change to reproductive growth and initiate flowers. After winter dormancy, flower development continues during the second season and ends with anthesis in the spring (Hanke et al, 2007). Loquat (Eriobotrya japonica Lindl.)…”

Section: Introductionmentioning

confidence: 99%

Warm Temperature During Floral Bud Transition Turns Off Ejtfl1 Gene Expression and Promotes Flowering in Loquat (Eriobotrya Japonica Lindl.)

Reig

García-Lorca

Martínez‐Fuentes

et al. 2023

Preprint

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“…The subsequently selected individual is an advanced selection, which is free of any unwanted transgenic DNA resulting from the transformation process, but which was produced in much less time than that required by traditional breeding. Therefore, rapid cycle breeding offers new horizons especially in tree breeding of species with a long juvenility phase (up to 10 years) such as apple, mango, or date palm ( Hanke et al, 2012 ). For such species, breeding programs usually take15–25 years if the F1 progeny contains the desired trait required in a new cultivar being developed ( Fenning and Gershenzon, 2002 ; Lespinasse, 2009 ; Sansavini and Tartarini, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

No Evidence of Unexpected Transgenic Insertions in T1190 – A Transgenic Apple Used in Rapid Cycle Breeding – Following Whole Genome Sequencing

et al. 2021

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Rapid cycle breeding uses transgenic early flowering plants as crossbreed parents to facilitate the shortening of breeding programs for perennial crops with long-lasting juvenility. Rapid cycle breeding in apple was established using the transgenic genotype T1190 expressing the BpMADS4 gene of silver birch. In this study, the genomes of T1190 and its non-transgenic wild-type PinS (F1-offspring of ‘Pinova’ and ‘Idared’) were sequenced by Illumina short-read sequencing in two separate experiments resulting in a mean sequencing depth of 182× for T1190 and 167× for PinS. The sequencing revealed 8,450 reads, which contain sequences of ≥20 bp identical to the plant transformation vector. These reads were assembled into 125 contigs, which were examined to see whether they contained transgenic insertions or if they are not using a five-step procedure. The sequence of one contig represents the known T-DNA insertion on chromosome 4 of T1190. The sequences of the remaining contigs were either equally present in T1190 and PinS, their part with sequence identity to the vector was equally present in apple reference genomes, or they seem to result from endophytic contaminations rather than from additional transgenic insertions. Therefore, we conclude that the transgenic apple plant T1190 contains only one transgenic insertion, located on chromosome 4, and shows no further partial insertions of the transformation vector.Accession Numbers: JQ974028.1.

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Functional Genomics of Flowering Time in Trees

Cited by 7 publications

References 135 publications

Pheno-thermal response of exotic high density apple varieties under temperate conditions of Kashmir

Pheno-thermal response of exotic high density apple varieties under temperate conditions of Kashmir

Warm Temperature During Floral Bud Transition Turns Off Ejtfl1 Gene Expression and Promotes Flowering in Loquat (Eriobotrya Japonica Lindl.)

No Evidence of Unexpected Transgenic Insertions in T1190 – A Transgenic Apple Used in Rapid Cycle Breeding – Following Whole Genome Sequencing

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