نتایج جستجو برای: Spring and winter growth habit

تعداد نتایج: 16948390  

Journal: :journal of plant physiology & breeding 2013
behnam derakhshani seyed abolghasem mohammadi mohammad moghaddam mohammad reza jalal kamali

wheat is a crop with spring and winter types and wide adaptability to different climate conditions. the wide adaptability of wheat is mainly controlled by three groups of genetic factors and among them vernalization (vrn) genes play pivotal role in determining spring and winter types. in this study, 395 iranian wheat landraces were characterized with specific primer pairs designed based on vrn-...

Journal: :Plant & cell physiology 2011
Daisuke Saisho Makoto Ishii Kiyosumi Hori Kazuhiro Sato

In many temperate plant species, prolonged cold treatment, known as vernalization, is one of the most critical steps in the transition from the vegetative to the reproductive stage. In contrast to recent advances in understanding the molecular basis of vernalization in Arabidopsis non-vernalization mutants or the spring growth habits of cereal crops such as wheat and barley, natural variations ...

2013
Mohsen Mohammadi Davoud Torkamaneh Hamid-Reza Nikkhah

Vernalization requirement is a key component in determining the overall fitness of developmental patterns of barley to its environment. We have used previously reported markers and spring-sown growth habit nursery to characterize the genotypes of barley germplasm in an applied barley breeding ground to establish a baseline of information required to understand the relationship between adaptatio...

    Wheat is the most important crop and is cultivated all over the world. Wheat has a wide range of adaptability to different climates. Vernalization genes are one of the important factors determining wheat adaptability. in wheat breeding program understanding the alleles at vernalization requirement gens are useful to introduce new cultivar for different climates. At the molecular level, the ...

Journal: :crop breeding journal 2013
b. derakhshan s. a. mohammadi m. moghaddam m. r. jalal kamali

wheat, a globally important food crop, is widely grown in various regions of the world. wheat’s wide adaptation to different climatic conditions is strongly controlled by vernalization (vrn), photoperiod (ppd) and earliness per se (eps) genes. in this study, 395 iranian wheat landraces were characterized by applying markers for the vernalization genes vrn-b1, vrn-d1, and vrn-b3. based on specif...

Behnam Derakhshani Mohammad Moghaddam Mohammad Reza Jalal Kamali Seyed Abolghasem Mohammadi

Wheat is a crop with spring and winter types and wide adaptability to different climate conditions. The wide adaptability of wheat is mainly controlled by three groups of genetic factors and among them vernalization (VRN) genes play pivotal role in determining spring and winter types. In this study, 395 Iranian wheat landraces were characterized with specific primer pairs designed based on VRN-...

2011
C.-G. Chu C. T. Tan G.-T Yu S. Zhong S. S. Xu L. Yan

Vernalization genes determine winter/spring growth habit in temperate cereals and play important roles in plant development and environmental adaptation. In wheat (Triticum L. sp.), it was previously shown that allelic variation in the vernalization gene VRN1 was due to deletions or insertions either in the promoter or in the first intron. Here, we report a novel Vrn-B1 allele that has a retrot...

Journal: :Journal of integrative plant biology 2009
Qing-Ming Sun Rong-Hua Zhou Li-Feng Gao Guang-Yao Zhao Ji-Zeng Jia

The frequency and distribution of the major vernalization requirement genes and their effects on growth habits were studied. Of the 551 bread wheat genotypes tested, seven allelic combinations of the three Vrn-1 genes were found to be responsible for the spring habit, three for the facultative habit and one for the winter habit. The three Vrn-1 genes behaved additively with the dominant allele ...

Journal: :Genetics 1988
R S Zemetra R Morris

During a study on the genetic control of winterhardiness in winter wheat (Triticum aestivum L. group aestivum), a gene that affected vernalization was found on chromosome 3B in the winter wheat cultivar ;Wichita.' When chromosome 3B from Wichita was substituted into the winter wheat cultivar ;Cheyenne,' the resultant substitution line exhibited a spring growth habit. This is unusual since a cro...

Journal: :Science 2004
Liuling Yan Artem Loukoianov Ann Blechl Gabriela Tranquilli Wusirika Ramakrishna Phillip SanMiguel Jeffrey L Bennetzen Viviana Echenique Jorge Dubcovsky

Plants with a winter growth habit flower earlier when exposed for several weeks to cold temperatures, a process called vernalization. We report here the positional cloning of the wheat vernalization gene VRN2, a dominant repressor of flowering that is down-regulated by vernalization. Loss of function of VRN2, whether by natural mutations or deletions, resulted in spring lines, which do not requ...

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