Cytoplasmatisch-genische Pollensterilit�t in Roggenformen iranischer Abstammung

Hh, Geiger

doi:10.1007/bf00595031

Cited by 11 publications

(2 citation statements)

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“…S-QTL, S-PPR, S-MTERF). A PPR-RFL/mTERF hotspot on 4RL coincides with known Rf loci for two rye CMS systems known as CMS-P (the commercially predominant ‘Pampa’- type) and CMS-C 7,14,53,54 (fig. M_GENESb,e,f; tbls.…”

Section: Resultsmentioning

confidence: 66%

Chromosome-scale genome assembly provides insights into rye biology, evolution, and agronomic potential

Rabanus‐Wallace

Hackauf

Mascher

et al. 2019

Preprint

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We present a chromosome-scale annotated assembly of the rye (Secale cereale L. inbred line ‘Lo7’) genome, which we use to explore Triticeae genomic evolution, and rye’s superior disease and stress tolerance. The rye genome shares chromosome-level organization with other Triticeae cereals, but exhibits unique retrotransposon dynamics and structural features. Crop improvement in rye, as well as in wheat and triticale, will profit from investigations of rye gene families implicated in pathogen resistance, low temperature tolerance, and fertility control systems for hybrid breeding. We show that rye introgressions in wheat breeding panels can be characterised in high-throughput to predict the yield effects and trade-offs of rye chromatin.

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Section: Resultsmentioning

confidence: 66%

Chromosome-scale genome assembly provides insights into rye biology, evolution, and agronomic potential

Rabanus‐Wallace

Hackauf

Mascher

et al. 2019

Preprint

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“…In the early 1990s, more effective Rf genes for the P cytoplasm ( Rfp ) were found in Iranian primitive rye and Argentinian landraces (Geiger and Miedaner ) related to those populations in which CMS sources were initially detected (Geiger and Schnell , Geiger ). These exotic Rfp genes follow a monogenic dominant inheritance (Miedaner et al.…”

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confidence: 99%

Correlated effects of exotic pollen‐fertility restorer genes on agronomic and quality traits of hybrid rye

et al. 2017

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In CMS (cytoplasmic male sterility)‐based hybrid rye (Secale cereale L.) breeding, effective pollen‐fertility restoration is an essential prerequisite for achieving maximum grain yield on the one hand and for minimizing ergot (Claviceps purpurea) infestation on the other. Restorer genes for the CMS‐inducing ‘Pampa’ cytoplasm derived from landraces collected in Iran and Argentina are used by breeders for achieving this goal. Here, restorer genes from four germplasm sources (‘Altevogt 14160’, ‘IRAN III’, ‘Trenelense’ and ‘Pico Gentario’) were analysed by producing three‐way cross hybrids between an elite CMS single cross and pollinators with and without a given restorer gene. Materials were evaluated on large drilled plots for restorer index (RI), grain yield, plant height and other traits in six environments. In experiment 1, a restorer gene from ‘Altevogt 14160’ was used. Seven pairs of marker‐selected carrier and non‐carrier backcross lines served as pollinators. In experiment 2, the pollinators were 17 backcross line pairs from the other three germplasm sources. These lines were grouped as high (RI > 67%) and low restorers (RI < 30%), respectively, using testcrosses with a highly diagnostic CMS tester. Hybrids carrying an exotic restorer gene suffered from a significant grain yield reduction by 4.4% and 9.4% and were 9.3 and 4.8 cm taller in experiments 1 and 2, respectively. Thousand‐kernel weight was reduced, whereas quality traits were only slightly affected. For all traits, significant genetic variance existed among the testcrosses to the presence vs. absence of a given exotic restorer gene. This offers a chance for the breeder to reduce or ultimately overcome the presently observed performance reductions brought about by exotic restorer genes.

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Hybrid Breeding in Rye (Secale cereale L.)

Miedaner

Laidig

2019

Advances in Plant Breeding Strategies: Cereals

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Cytoplasmatisch-genische Pollensterilit�t in Roggenformen iranischer Abstammung

Cited by 11 publications

References 1 publication

Chromosome-scale genome assembly provides insights into rye biology, evolution, and agronomic potential

Chromosome-scale genome assembly provides insights into rye biology, evolution, and agronomic potential

Correlated effects of exotic pollen‐fertility restorer genes on agronomic and quality traits of hybrid rye

Hybrid Breeding in Rye (Secale cereale L.)

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