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Molecular diversity based heterotic groups in pigeonpea [Cajanus cajan (L.) Millsp.]

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Relation http://oar.icrisat.org/8675/
http://dx.doi.org/10.5958/0975-6906.2015.00006.1
10.5958/0975-6906.2015.00006.1
 
Title Molecular diversity based heterotic groups in pigeonpea [Cajanus cajan (L.) Millsp.]
 
Creator Mudaraddi, B
Saxena, K B
 
Subject Pigeonpea
 
Description A set of 155 hybrid parents was characterized at molecular
level using 24 simple sequence repeat (SSR) markers.The
number of alleles amplified ranged from 3 to 41 at an average
of 14.5 alleles per marker and mean polymorphic information
content (PIC) value of 0.64. Based on genetic diversity, three
heterotic groups were constituted. Male sterile (A) lines
were distributed into two heterotic groups, while the fertility
restorer (R) lines formed three heterotic groups. Of the 135
restorers studied, 51 (37.78%) were classified in heterotic
group I, and 75 (55.56%) in heterotic group II. Six interspecific
derivatives and three other genotypes constituted
the heterotic group III. These observations indicated the
presence of limited genetic diversity among A and R lines.
Based on the present results, it is recommended that for
breeding high yielding pigeonpea hybrids, more attention
be given to develop new genetically diverse hybrid parents.
 
Publisher Indian Society of Genetics & Plant Breeding
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8675/1/IndianJGenet_75_1_57-61_2015.pdf
Mudaraddi, B and Saxena, K B (2015) Molecular diversity based heterotic groups in pigeonpea [Cajanus cajan (L.) Millsp.]. Indian Journal of Genetics and Plant Breeding, 75 (1). pp. 57-61. ISSN 0019-5200