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Genetic Analysis of Bolting Tendency in Beta vulgaris ssp. maritima

Research Authors
Salah Fatouh AbouElwafa
Research Abstract

—Beta vulgaris ssp. maritima is a facultative perennial species exhibits large intraspecific variation in
vernalization requirement. Bolting tendency is a complex character governed by various environmental cues
and multiple genetic factors. A panel of B. vulgaris ssp. maritima accessions collected from the Mediterranean
costs revealed significant variations in bolting time. Three F2 populations derived from crosses between six
annual beet accessions were analyzed for bolting behavior. Two F2 segregated populations, i.e., Bvm127 and
Bvm128 exhibited phenotypic segregation ratios of 3 : 1 earlybolting and latebolting which is expected for
dominantrecessive inheritance of a monogenic trait. Meanwhile, the phenotypic segregation ratio for early
bolting: latebolting in the F2 population Bvm125 did not deviate significantly from 63 : 1, indicating a poly
genic inheritance of bolting tendency in Beta vulgaris ssp. maritime. Broad sense heritability for bolting ten
dency ranged from 0.58 to 0.74.

Research Department
Research Journal
Russian Agricultural Sciences
Research Publisher
Springer
Research Rank
1
Research Vol
Vol. 41, No. 5
Research Website
http://www.springer.com/life+sciences/agriculture/journal/11978
Research Year
2015
Research Pages
317-322