Mapping loci controlling vernalization requirement in Brassica rapa

1995 ◽  
Vol 91 (8) ◽  
pp. 1279-1283 ◽  
Author(s):  
R. A. Teutonico ◽  
T. C. Osborn
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Satoko Takada ◽  
Ayasha Akter ◽  
Etsuko Itabashi ◽  
Namiko Nishida ◽  
Daniel J. Shea ◽  
...  

Abstract There is a wide variation of flowering time among lines of Brassica rapa L. Most B. rapa leafy (Chinese cabbage etc.) or root (turnip) vegetables require prolonged cold exposure for flowering, known as vernalization. Premature bolting caused by low temperature leads to a reduction in the yield/quality of these B. rapa vegetables. Therefore, high bolting resistance is an important breeding trait, and understanding the molecular mechanism of vernalization is necessary to achieve this goal. In this study, we demonstrated that BrFRIb functions as an activator of BrFLC in B. rapa. We showed a positive correlation between the steady state expression levels of the sum of the BrFLC paralogs and the days to flowering after four weeks of cold treatment, suggesting that this is an indicator of the vernalization requirement. We indicate that BrFLCs are repressed by the accumulation of H3K27me3 and that the spreading of H3K27me3 promotes stable FLC repression. However, there was no clear relationship between the level of H3K27me3 in the BrFLC and the vernalization requirement. We also showed that if there was a high vernalization requirement, the rate of repression of BrFLC1 expression following prolonged cold treatments was lower.


Planta Medica ◽  
2013 ◽  
Vol 79 (10) ◽  
Author(s):  
JE Fierro ◽  
P Jiménez ◽  
ED Coy-Barrera

Author(s):  
А. М. Артемьева ◽  
С. В. Соловьева
Keyword(s):  

В течение трех лет изучали 34 реципрокных гибрида, полученные при гибридизации 17 родительских пар между подвидами вида Brassica rapa. Анализировали содержание сухих веществ, белка, сахаров, аскорбиновой кислоты, общей кислотности, пигментов (хлорофиллы A и B, каротиноиды, каротины, β-каротин), нитратов. Показано, что все изученные гибриды пекинской, китайской, розеточной и японской капуст могут быть источниками высокого содержания аскорбиновой кислоты. В свою очередь, источниками высокого содержания хлорофиллов и β-каротина являются темно-зеленые образцы розеточной и японской капуст.


2018 ◽  
Vol 9 (2) ◽  
pp. 153-163
Author(s):  
Wiwik Ambarsari ◽  
Henly Yuliana

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).


2011 ◽  
Vol 37 (9) ◽  
pp. 1597-1604 ◽  
Author(s):  
Gui-Zhen GAO ◽  
Fei YING ◽  
Bi-Yun CHEN ◽  
Hao LI ◽  
Xiao-Dan LÜ ◽  
...  

2010 ◽  
Vol 36 (8) ◽  
pp. 1280-1285 ◽  
Author(s):  
Jun LI ◽  
Li-Xia LUO ◽  
Zhuan WANG ◽  
Jun LI ◽  
Kun-Rong CHEN ◽  
...  

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