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Evidence of a unique inter-allelic epistatic interaction for seed coat color in pigeonpea [Cajanus cajan (L.) Millspaugh]

OAR@ICRISAT

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Relation http://oar.icrisat.org/5326/
http://dx.doi.org/10.1007/s10681-011-0610-z
 
Title Evidence of a unique inter-allelic epistatic interaction for seed coat color in pigeonpea [Cajanus cajan (L.) Millspaugh]
 
Creator Saxena, K B
Saxena, R K
Kumar, R V
Varshney, R K
 
Subject Pigeonpea
 
Description For enhancing productivity and profitabil-
ity of pigeonpea (Cajanus cajan (L.) Millsp.) a hybrid
breeding technology based on a cytoplasmic nuclear
male-sterility (CMS) system was developed at Inter-
national Crops Research Institute for the Semi-Arid
Tropics (ICRISAT). Among the elite hybrids ‘ICPH
2671’ was most out-standing with 30–35% yield
advantage over local varieties. Despite its commercial
release in 2010, this hybrid could not attract many
growers due to its less preferred seed color. Both the
parents (ICPA 2043 and ICPR 2671) of this hybrid and
their crossed seeds had Greyed-orange [code no*:
167B/C (* The standard identification numbers of
Royal Horticultural Society)] color. However, the
commercial seeds produced on the hybrid plants
surprisingly have Greyed-purple (code no: 183C)
color that fetches relatively less profits. To understand
the genetics of this phenomenon a cross combination
was studied for seed color in F1, F2, and B1C1F1
generations. The data suggested that three independent
dominant genes controlled the expression of seed coat
color. The observations further suggested the presence
of two dominant genes (Brsd1 and Brsd2) in the male-
sterile line ‘ICPA 2043’, ‘ICPR 2671’ and another
 
Publisher Springer
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/5326/1/Euphytica_186_813-816_2012.pdf
Saxena, K B and Saxena, R K and Kumar, R V and Varshney, R K (2012) Evidence of a unique inter-allelic epistatic interaction for seed coat color in pigeonpea [Cajanus cajan (L.) Millspaugh]. Euphytica, 186 (3). pp. 813-816. ISSN 1573-5060