Inheritance and yield components in F3 families of groundnut

Inheritance study of groundnut indicated that a single dominant gene governed the flower with red stripe on standard. All F1 plants had red stripe on standard. The segregation of F3:2 families (derived from individual F2 plants) showed 1:2:1 expected ratio (χ2 = 0.659) of 1 non-segregating (plants w...

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Main Authors: Prathepha, P., Wongkaew, S., Surson, S., Laohasiriwong, S.
Format: Article
Language:English
Published: Prince of Songkla University 2004-11-01
Series:Songklanakarin Journal of Science and Technology (SJST)
Subjects:
pod
Online Access:http://www.sjst.psu.ac.th/journal/26-6-pdf/05groundnut-inheritance.pdf
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spelling doaj-ad5dac54deb04ff2adb017f93e2eca702020-11-25T00:42:07ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952004-11-01266807822Inheritance and yield components in F3 families of groundnutPrathepha, P.Wongkaew, S.Surson, S.Laohasiriwong, S.Inheritance study of groundnut indicated that a single dominant gene governed the flower with red stripe on standard. All F1 plants had red stripe on standard. The segregation of F3:2 families (derived from individual F2 plants) showed 1:2:1 expected ratio (χ2 = 0.659) of 1 non-segregating (plants with red stripe on standard) to 2 segregating (plants with red stripe on standard and plants with no red stripe on standard) to 1 non-segregating (plant with no red stripe on standard). When the F3 groundnut families which had plants with red stripe on standard were combined, the segregation ratio was not different from the 3:1 Mendelian ratio (χ2 = 0.073). The symbols for standard flower trait were designated St for dominant trait and st for recessive trait. For peg's color characteristic, the plants with red stripe on standard flower had purple peg. It is possible that the red stripe on standard flower gene had a pleiotropic effect on peg color or this may indicate linked genes. For characters of pod, the F1 showed moderately reticulate pods.The segregation of F3:2 families showed also a 1:2:1 expected ratio (χ2 = 0.067) giving 1 non-segregating (plants with reticulate pod) to 2 segregating (plants with reticulate pod and plants with smooth pod) to 1 non-segregating (plants with smooth pod). When the F3 groundnut families which had plants with reticulate pod were combined, the segregation ratio was not different from the 3:1 Mendelian ratio (χ2 = 0.065). The results indicated that pod characters were governed by a single gene. The symbols of pod character were designated Re for dominant gene and re for recessive gene. For yield components study, the F3 generation had lower yield than their parents did but some of them had similar yield with their parents. Yield components were highly correlated with each other. In addition, yield components of F3 families were also correlated with their leaf characters. The plants with larger leaf had bigger pods, more prolific pods, and heavier seeds.http://www.sjst.psu.ac.th/journal/26-6-pdf/05groundnut-inheritance.pdfinheritancegroundnutflowerpodleafyieldcorrelation
collection DOAJ
language English
format Article
sources DOAJ
author Prathepha, P.
Wongkaew, S.
Surson, S.
Laohasiriwong, S.
spellingShingle Prathepha, P.
Wongkaew, S.
Surson, S.
Laohasiriwong, S.
Inheritance and yield components in F3 families of groundnut
Songklanakarin Journal of Science and Technology (SJST)
inheritance
groundnut
flower
pod
leaf
yield
correlation
author_facet Prathepha, P.
Wongkaew, S.
Surson, S.
Laohasiriwong, S.
author_sort Prathepha, P.
title Inheritance and yield components in F3 families of groundnut
title_short Inheritance and yield components in F3 families of groundnut
title_full Inheritance and yield components in F3 families of groundnut
title_fullStr Inheritance and yield components in F3 families of groundnut
title_full_unstemmed Inheritance and yield components in F3 families of groundnut
title_sort inheritance and yield components in f3 families of groundnut
publisher Prince of Songkla University
series Songklanakarin Journal of Science and Technology (SJST)
issn 0125-3395
publishDate 2004-11-01
description Inheritance study of groundnut indicated that a single dominant gene governed the flower with red stripe on standard. All F1 plants had red stripe on standard. The segregation of F3:2 families (derived from individual F2 plants) showed 1:2:1 expected ratio (χ2 = 0.659) of 1 non-segregating (plants with red stripe on standard) to 2 segregating (plants with red stripe on standard and plants with no red stripe on standard) to 1 non-segregating (plant with no red stripe on standard). When the F3 groundnut families which had plants with red stripe on standard were combined, the segregation ratio was not different from the 3:1 Mendelian ratio (χ2 = 0.073). The symbols for standard flower trait were designated St for dominant trait and st for recessive trait. For peg's color characteristic, the plants with red stripe on standard flower had purple peg. It is possible that the red stripe on standard flower gene had a pleiotropic effect on peg color or this may indicate linked genes. For characters of pod, the F1 showed moderately reticulate pods.The segregation of F3:2 families showed also a 1:2:1 expected ratio (χ2 = 0.067) giving 1 non-segregating (plants with reticulate pod) to 2 segregating (plants with reticulate pod and plants with smooth pod) to 1 non-segregating (plants with smooth pod). When the F3 groundnut families which had plants with reticulate pod were combined, the segregation ratio was not different from the 3:1 Mendelian ratio (χ2 = 0.065). The results indicated that pod characters were governed by a single gene. The symbols of pod character were designated Re for dominant gene and re for recessive gene. For yield components study, the F3 generation had lower yield than their parents did but some of them had similar yield with their parents. Yield components were highly correlated with each other. In addition, yield components of F3 families were also correlated with their leaf characters. The plants with larger leaf had bigger pods, more prolific pods, and heavier seeds.
topic inheritance
groundnut
flower
pod
leaf
yield
correlation
url http://www.sjst.psu.ac.th/journal/26-6-pdf/05groundnut-inheritance.pdf
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