Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper)
Understanding the genetic architecture of complex traits is the major thrust in plant breeding programs. Hence, the present investigation was carried out at a dry land farm of S.V. Agricultural College, Tirupati during rabi, 2020 to elucidate the gene action governing seed yield, yield related tra...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2022-09-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4222 |
| _version_ | 1797851703668637696 |
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| author | A. Kavitha Reddy1*, D. Mohan Reddy2, Lakshminarayana, R. Vemireddy3, P. Sudhakar4 and B. V. Bhaskara Reddy5 |
| author_facet | A. Kavitha Reddy1*, D. Mohan Reddy2, Lakshminarayana, R. Vemireddy3, P. Sudhakar4 and B. V. Bhaskara Reddy5 |
| author_sort | A. Kavitha Reddy1*, D. Mohan Reddy2, Lakshminarayana, R. Vemireddy3, P. Sudhakar4 and B. V. Bhaskara Reddy5 |
| collection | DOAJ |
| description | Understanding the genetic architecture of complex traits is the major thrust in plant breeding programs. Hence, the
present investigation was carried out at a dry land farm of S.V. Agricultural College, Tirupati during rabi, 2020 to
elucidate the gene action governing seed yield, yield related traits and earliness in blackgram. The experimental
material consisted of six generations viz., P1, P2, F1, F2, B1 and B2 of five blackgram crosses viz., LBG-752 x TBG-
104, LBG-752 x PU-31, LBG-752 x TU-40, TU-40 x TBG-104 and IPU-2-43 x TBG-104. The scaling tests suggested
that the simple additive–dominance model is inadequate in elucidating gene action in all the crosses for all the traits.
Generation mean analysis based on six parameter model made evident that gene interactions varied cross-wise as
well as character-wise. A complementary type of epistasis was observed for majority of the yield attributing traits,
while days to 50 % flowering and days to maturity had duplicate epistasis in majority of the cross combinations. High
yielding and short duration blackgram varieties could be developed by exploiting both additive and non-additive gene
effects in the present set of breeding material through inter-mating of desirable transgressive segregants in the early
generations followed by simple pedigree selection. |
| first_indexed | 2024-04-09T19:20:58Z |
| format | Article |
| id | doaj.art-3fe9859898244e0f80181c1a3c3ca2b0 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-09T19:20:58Z |
| publishDate | 2022-09-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-3fe9859898244e0f80181c1a3c3ca2b02023-04-05T09:05:59ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2022-09-011331077108310.37992/2022.1303.145Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper)A. Kavitha Reddy1*, D. Mohan Reddy2, Lakshminarayana, R. Vemireddy3, P. Sudhakar4 and B. V. Bhaskara Reddy501Department of Genetics & Plant Breeding, S.V. Agricultural College, Tirupati, India. 2Department of Genetics & Plant Breeding, IFT, Regional Agricultural Research Station, Tirupati, India. 3Department of Molecular Biology and Biotechnology, S.V. Agricultural College, Tirupati, India. 4Administrative office, Angrau, Lam, Guntur, India. 5 Department of Plant Pathology, IFT, Regional Agricultural Research Station, Tirupati, India. *E-Mail: appagari@gmail.comUnderstanding the genetic architecture of complex traits is the major thrust in plant breeding programs. Hence, the present investigation was carried out at a dry land farm of S.V. Agricultural College, Tirupati during rabi, 2020 to elucidate the gene action governing seed yield, yield related traits and earliness in blackgram. The experimental material consisted of six generations viz., P1, P2, F1, F2, B1 and B2 of five blackgram crosses viz., LBG-752 x TBG- 104, LBG-752 x PU-31, LBG-752 x TU-40, TU-40 x TBG-104 and IPU-2-43 x TBG-104. The scaling tests suggested that the simple additive–dominance model is inadequate in elucidating gene action in all the crosses for all the traits. Generation mean analysis based on six parameter model made evident that gene interactions varied cross-wise as well as character-wise. A complementary type of epistasis was observed for majority of the yield attributing traits, while days to 50 % flowering and days to maturity had duplicate epistasis in majority of the cross combinations. High yielding and short duration blackgram varieties could be developed by exploiting both additive and non-additive gene effects in the present set of breeding material through inter-mating of desirable transgressive segregants in the early generations followed by simple pedigree selection.https://www.ejplantbreeding.org/index.php/EJPB/article/view/4222blackgramgeneration mean analysisseed yieldearliness |
| spellingShingle | A. Kavitha Reddy1*, D. Mohan Reddy2, Lakshminarayana, R. Vemireddy3, P. Sudhakar4 and B. V. Bhaskara Reddy5 Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) Electronic Journal of Plant Breeding blackgram generation mean analysis seed yield earliness |
| title | Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) |
| title_full | Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) |
| title_fullStr | Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) |
| title_full_unstemmed | Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) |
| title_short | Scrutiny of gene action underlying yield contributing traits and earliness in blackgram (Vigna mungo (L.) Hepper) |
| title_sort | scrutiny of gene action underlying yield contributing traits and earliness in blackgram vigna mungo l hepper |
| topic | blackgram generation mean analysis seed yield earliness |
| url | https://www.ejplantbreeding.org/index.php/EJPB/article/view/4222 |
| work_keys_str_mv | AT akavithareddy1dmohanreddy2lakshminarayanarvemireddy3psudhakar4andbvbhaskarareddy5 scrutinyofgeneactionunderlyingyieldcontributingtraitsandearlinessinblackgramvignamungolhepper |