Correlation of Vernalization Loci VRN-H1 and VRN-H2 and Growth Habit in Barley Germplasm
Joint Authors
Mohammadi, Mohsen
Torkamaneh, Davoud
Nikkhah, Hamid-Reza
Source
International Journal of Plant Genomics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
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 adaptation of autumn-sown barley germplasm in diverse regions with warm (W), moderate (M), or cold climates (C).
This study revealed that twenty entries were detected with the presence of the vernalization critical region in VRN-H1 locus and complete presence of the three geneclusters ZCCT-Ha, -Hb, and -Hc in VRN-H2 locus represented as genotype vrn-H1/Vrn-H2 (V1w/V2w).
Of these genotypes, 17 entries showed winter growth habit whereas the remaining three revealed facultative growth habit indicating reduced vernalization requirements possibly due to VRN-H3 and photoperiod sensitivity loci as compared to the landmark winter growth habit entries in this group.
Twenty-four entries were detected with the lack of vernalization critical region in VRN-H1 locus but complete presence of the three geneclusters ZCCT-Ha, -Hb, and -Hc in VRN-H2 locus represented as genotype Vrn-H1/Vrn-H2 (V1s/V2w).
However, only half of these germplasms were identified with spring growth habit in spring-sown nursery, and the rest of the germplasms in this group revealed facultative growth habits due to possible variation in the length of deletion in VRN-H1.
Four germplasms showed vernalization insensitive phenotype due to the lack of a functional ZCCT-Ha and/or ZCCT-Hb alleles in VRN-H2 and the deletion in the vernalization critical region of VRN-H1.
These germplasms revealed acomplete spring type growth habit.
Only one entry showed reduced vernalization requirement solely due to the deletion in functional ZCCT-Hb allele in VRN-H2 and not due to the deletion in the vernalization critical region of VRN-H1.
American Psychological Association (APA)
Mohammadi, Mohsen& Torkamaneh, Davoud& Nikkhah, Hamid-Reza. 2013. Correlation of Vernalization Loci VRN-H1 and VRN-H2 and Growth Habit in Barley Germplasm. International Journal of Plant Genomics،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-508463
Modern Language Association (MLA)
Mohammadi, Mohsen…[et al.]. Correlation of Vernalization Loci VRN-H1 and VRN-H2 and Growth Habit in Barley Germplasm. International Journal of Plant Genomics No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-508463
American Medical Association (AMA)
Mohammadi, Mohsen& Torkamaneh, Davoud& Nikkhah, Hamid-Reza. Correlation of Vernalization Loci VRN-H1 and VRN-H2 and Growth Habit in Barley Germplasm. International Journal of Plant Genomics. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-508463
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508463