scholarly journals Molecular Characterization of the Dwarf53 Gene Homolog in Dasypyrum Villosum

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 186
Author(s):  
Mikhail Bazhenov ◽  
Anastasiya Chernook ◽  
Pavel Kroupin ◽  
Gennady Karlov ◽  
Mikhail Divashuk

The Dwarf53 (D53) gene, first studied in rice, encodes a protein that acts as a repressor of the physiological response of plants to strigolactones—substances that regulate the activity of axillary buds, stem growth, branching of roots and other physiological processes. In this work, we isolated and sequenced the homolog of the D53 gene in several accessions of the wild grass Dasypyrum villosum of different geographical origins, resulting in the discovery of large allelic variety. A molecular marker was also created that allows us to differentiate the D. villosum D53 gene from common wheat genes. Using this marker and monosomic addition, substitution and translocation wheat lines carrying the known D. villosum chromosomes, the D53 gene was localized on the long arm of the 5V chromosome.

Plant Science ◽  
2021 ◽  
Vol 305 ◽  
pp. 110843
Author(s):  
Juan B. Alvarez ◽  
Laura Castellano ◽  
Ana B. Huertas-García ◽  
Carlos Guzmán

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0157642 ◽  
Author(s):  
XueYuan Lou ◽  
Xin Li ◽  
AiXia Li ◽  
MingYu Pu ◽  
Muhammad Shoaib ◽  
...  

2009 ◽  
Vol 84 (6) ◽  
pp. 407-416 ◽  
Author(s):  
Yadav Prasad Gyawali ◽  
Shuhei Nasuda ◽  
Takashi R. Endo

2019 ◽  
pp. 230-233

Caracterización molecular de Heliconia sp. Utilizando la técnica RAPD. Molecular characterization of Heliconia sp. using RAPD technique. Freddy Gutierrez, Roberson Ramirez, Pedro Adrianzén, Marianela Cobos, Sergio Pinedo, Sixto Imán, Juan Castro Centro de Investigaciones de Recursos Naturales de la Amazonia (CIRNA), 496S. Universidad Nacional de la Amazonia Peruana-UNAP. Apartado postal 496S Facultad de Ciencias Biológicas. Instituto Nacional de Innovación Agraria (INIA), C.P. 609. DOI: https://doi.org/10.33017/RevECIPeru2011.0051/ RESUMEN Este trabajo se realizó entre los meses de Julio a Setiembre del 2010, con el objetivo de caracterizar molecularmente a la especie Heliconia sp. Utilizando el marcador molecular RAPD. Para esto, se realizó la purificación del ADN genómico de la especie en estudio obteniéndose buenos resultados en cuanto a la calidad y la cantidad del ADN purificado, el cual fue verificado con los métodos electroforético y espectrofotométrico, la cantidad de ADN obtenido en promedio fue de 92.8 ng/ μl, asimismo el ratio de calidad promedio fue de 2.2. Para la amplificación de los productos de la PCR se empleó el iniciador MT3R, obteniéndose mucho polimorfismo. Los productos de la PCR tuvieron tamaños de 750 pb hasta 2050 pb. En cuanto a la caracterización molecular, se realizó un dendograma (UPGMA) utilizando el programa estadístico NTSIS versión 2.0. Asimismo se obtuvo la formación de 2 grupos (clusters) y 2 fugas donde se observó la aparición de “aparentes duplicados” en algunos de ellos, es decir, que comparten el mismo patrón genético con un 100% de similitud. Además el valor de la heterocigosidad esperada fue de 0.14, valor relativamente bajo, posiblemente al tipo de reproducción que posee este género, el cual es la autogamica. Descriptores: ADN genómico, Heliconia sp, electroforético, espectrofotométrico. ABSTRACT This work was carried out between the months of July to September 2010 with the objective of molecular characterization of the species heliconia sp using the RAPD molecular marker. For this, we performed the purification of genomic DNA, of the species under study with good results in terms of quality and quantity of purified DNA, which was verified by electrophoretic and spectrophometric methods, the amount of DNA obtained was on average 92.8 ng/ l, also the ratio of average quality was 2.2. For amplification of PCR products was used MT3R initiator, obtaining much polymorphism. PCR products had sizes of 750 bp to 2050 bp. as for the molecular characterization, we performed a dendrogram (UPGMA) using the statiscal sofwar version 2.0 NTSIS. It also obtained the formation of 2 groups (clusters) and 2 leaks where we the appearance  of “apparent duplicates” in some of them, ie they share the same genetic patern with 100% similarity. Also, the value of expected heterozygosity was 0.14, relatively low value, possibly the type of reproduction that has this kind, which is the autogamous. Keywords: genomic DNA, Heliconia sp, electrophoretic, spectrophometric.


2015 ◽  
Vol 41 (10) ◽  
pp. 1472 ◽  
Author(s):  
Jin-Dong LIU ◽  
En-Nian YANG ◽  
Yong-Gui XIAO ◽  
Xin-Min CHEN ◽  
Ling WU ◽  
...  

2004 ◽  
Vol 85 (2) ◽  
pp. 293-304 ◽  
Author(s):  
Claire de Boisséson ◽  
Véronique Béven ◽  
Laurent Bigarré ◽  
Richard Thiéry ◽  
Nicolas Rose ◽  
...  

Porcine circovirus type 2 (PCV2) is recognized as a primary cause in post-weaning multisystemic wasting syndrome (PMWS). In this study, both PCV1 and PCV2 types were studied in pigs originating from PMWS-affected (+) and non-affected (−) herds from Brittany. PCV2 was identified by PCR in 100 % of animals from PMWS(+) herds and in 76 % from PMWS(−) herds, while PCV1 was not detected. The complete sequences of 38 PCV2 isolates were determined and 23 new variants were identified, displaying between 94·6 and 99·9 % nucleotide identity with one another. Although highly related to all the PCV2 sequences available in databases, the isolates from France gathered in a distinct subcluster. Compared with the 13 PCV2 from PMWS(+) farms, the 10 PMWS(−) sequences exhibited a slightly higher variability. No viral molecular marker specific to a pathogenic state could be identified, even by including other PCV2 variants isolated from PMWS-suffering animals from other countries. We concluded that the PMWS outbreaks in Brittany are most likely not due to the emergence of a new genotype of circovirus.


Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 18
Author(s):  
Hai An Truong ◽  
Hyeri Lee ◽  
Masahiro Kishii ◽  
Suk Whan Hong ◽  
Hojoung Lee

Synthetic hexaploid wheat (SHW) is a valuable resource for breeding because it possesses more desirable traits, such as better yield and abiotic and biotic stress tolerance than common wheat. In this study, our group developed a SHW line, named ‘SynDT’, which has markedly better characteristics than Korean bread wheat ‘Keumkang’. The SynDT line is thermotolerant as it rapidly expresses heat shock proteins under heat stress. In addition, this line exhibits resistance to leaf rust by inducing the expression of antifungal enzymes, mainly chitinase, along with the rapid and high expression of pathogen-related genes. Moreover, it possesses the favorable traits of its parent wheat lines Triticum durum #24 and Aegilops tauschii #52. Therefore, the SynDT wheat line can be used as a breeding material for improving local common wheat cultivars.


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