Sequence variation in the bolting time regulator BTC1 changes the life cycle regime in sugar beet

2018 ◽  
Vol 137 (3) ◽  
pp. 412-422 ◽  
Author(s):  
Nadine Höft ◽  
Nadine Dally ◽  
Christian Jung
Keyword(s):  
Life Cycle ◽  
Sugar Beet ◽  
Sequence Variation ◽  
Bolting Time

Puccinia subnitens: An Obscure Rust Pathogen Little-Known for More than a Century

2014 ◽  
Vol 15 (3) ◽  
pp. 105-111
Author(s):  
Robert M. Harveson
Keyword(s):  
Life Cycle ◽  
Sugar Beet ◽  
Host Range ◽  
Host Species ◽  
Complex Life Cycle ◽  
Narrow Host Range ◽  
Rust Diseases ◽  
Rust Pathogen

Sugar beet seedling rust, caused by Puccinia subnitens, is a rarely occurring but essentially harmless disease in sugar beet production. However, it has caused substantial but sporadic losses to commercial spinach growers. It has the typically complex life cycle of a macrocyclic rust pathogen, but is also unusual because it is one of the few documented heteroecious rust diseases where the early spore stages (pycnial and aecial) occur on the economic host while the normally damaging, repeating, uredial stage is found on the feral, noneconomic host. Most significantly, it was one of the first heteroecious rust diseases recognized to have the ability to infect numerous, distinct host species with the aecial stage while maintaining a relatively narrow host range for its uredial and telial stages. Accepted 6 June 2014. Published 25 July 2014.

Studies on the life-cycle of Polymyxa betae in sugar beet roots

1996 ◽  
Vol 100 (2) ◽  
pp. 203-208 ◽  
Author(s):  
K.J. Barr ◽  
M.J.C. Asher
Keyword(s):  
Life Cycle ◽  
Sugar Beet ◽  
Polymyxa Betae

scholarly journals Vernalisation mediated LncRNA-like gene expression in Beta vulgaris

2017 ◽  
Vol 44 (7) ◽  
pp. 720 ◽  
Author(s):  
Naiguo Liang ◽  
Dayou Cheng ◽  
Jie Cui ◽  
Cuihong Dai ◽  
Chengfei Luo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Life Cycle ◽  
Sugar Beet ◽  
Beta Vulgaris ◽  
Cold Exposure ◽  
First Year ◽  
Future Studies ◽  
Long Day ◽  
Regulation Mechanisms ◽  
First Time

Sugar beet (Beta vulgaris L.) cannot form reproductive shoots during the first year of their life cycle. Flowering only occurs if plants are vernalised and are subsequently exposed to long days. However, the vernalisation mechanism remains poorly understood in sugar beet. Three putative lncRNAs associated with vernalisation (AGL15X1, AGL15X2 and CAULIFLOWER A) were investigated and the hypothesis that their expression occurred in response to vernalisation was experimentally tested. The regulation mechanisms of BvRAV1-like, lncRNA-like genes, BvFT1 and BvFT2 were also examined. The BvRAV1-like gene associated with vernalisation in sugar beet was validated for the first time. Our data confirmed the hypothesis that AGLX2 was the first candidate lncRNA of sugar beet and the BvRAV1-like gene was expressed in response to vernalisation. BvRAV1-like and AGLX2 genes might be coordinated with BvFT2 to promote reproductive growth by repressing BvFT1 during cold exposure followed by long day conditions. A new complementary flowering model of sugar beet was proposed. Our findings opened up new possibility for future studies and further illuminated the molecular mechanism of vernalisation in sugar beet.

Life cycle analysis for bioethanol production from sugar beet crops in Greece

Energy Policy ◽  
2011 ◽  
Vol 39 (9) ◽  
pp. 4834-4841 ◽  
Author(s):  
Spyros Foteinis ◽  
Victor Kouloumpis ◽  
Theocharis Tsoutsos
Keyword(s):  
Life Cycle ◽  
Sugar Beet ◽  
Life Cycle Analysis ◽  
Bioethanol Production

scholarly journals The Evolutionary History of Beet necrotic yellow vein virus Deduced from Genetic Variation, Geographical Origin and Spread, and the Breaking of Host Resistance

2011 ◽  
Vol 24 (2) ◽  
pp. 207-218 ◽  
Author(s):  
Soutaro Chiba ◽  
Hideki Kondo ◽  
Masaki Miyanishi ◽  
Ida Bagus Andika ◽  
Chenggui Han ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Host Resistance ◽  
Evolutionary History ◽  
Sequence Variation ◽  
Geographical Origin ◽  
Geographical Location ◽  
Yellow Vein ◽  
Resistance Breaking ◽  
History Of ◽  
Report Analysis

Beet necrotic yellow vein virus (BNYVV) is an economically important pathogen of sugar beet and has been found worldwide, probably as the result of recent worldwide spread. The BNYVV genome consists of four or five RNA components. Here, we report analysis of sequence variation in the RNA3-p25, RNA4-p31, RNA2-CP, and RNA5-p26 genes of 73 worldwide isolates. The RNA3-p25 gene encodes virulence and avirulence factors. These four sets of gene sequences each fell into two to four groups, of which the three groups of p25 formed eight subgroups with different geographical distributions. Each of these subgroup isolates (strains) could have arisen from four original BNYVV population and their mixed infections. The genetic diversity for BNYVV was relatively small. Selection pressure varied greatly depending on the BNYVV gene and geographical location. Isolates of the Italy strain, in which p25 was subject to the strongest positive selection, were able to overcome the Rz1-host resistance gene to differing degrees, whereas other geographically limited strains could not. Resistance-breaking variants were generated by p25 amino acid changes at positions 67 and 68. Our studies suggest that BNYVV originally evolved in East Asia and has recently become a pathogen of cultivated sugar beet followed by the emergence of new resistance-breaking variants.

scholarly journals Note on the Life Cycle of the Sugar-Beet Webworm

1917 ◽  
Vol 10 (6) ◽  
pp. 543-544
Author(s):  
H. O. Marsh
Keyword(s):  
Life Cycle ◽  
Sugar Beet
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