Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)

Stem internode length determines height to first pod (HFP), an important trait for mechanical harvesting in legume crops. In the present study, this trait in lentil was (<i>Lens culinaris</i> Medik.) examined using scanning electron microscopy (SEM) of epidermal cells in stem internodes...

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Main Authors: Marzhan Kuzbakova, Gulmira Khassanova, Satyvaldy Jatayev, Nurgul Daniyeva, Crystal Sweetman, Colin L. D. Jenkins, Kathleen L. Soole, Yuri Shavrukov
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/14/8/1157
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author Marzhan Kuzbakova
Gulmira Khassanova
Satyvaldy Jatayev
Nurgul Daniyeva
Crystal Sweetman
Colin L. D. Jenkins
Kathleen L. Soole
Yuri Shavrukov
author_facet Marzhan Kuzbakova
Gulmira Khassanova
Satyvaldy Jatayev
Nurgul Daniyeva
Crystal Sweetman
Colin L. D. Jenkins
Kathleen L. Soole
Yuri Shavrukov
author_sort Marzhan Kuzbakova
collection DOAJ
description Stem internode length determines height to first pod (HFP), an important trait for mechanical harvesting in legume crops. In the present study, this trait in lentil was (<i>Lens culinaris</i> Medik.) examined using scanning electron microscopy (SEM) of epidermal cells in stem internodes of two parents, Flip92-36L and ILL-1552, with long and short HFP, respectively. No significant differences in cell length, but differences in cell width were seen. This indicates that HFP was determined by cell number rather than cell length. The candidate gene family for HFP, <i>Suppressor of Overexpression of Constans 1</i> (<i>SOC1</i>), a member of the MADS-box transcription factor family, controls both flowering time (FT) and HFP traits. Six <i>LcSOC1</i> genes were identified in this study, and their expression was analysed. Most of the genes studied showed constitutive expression during vegetative growth, flowering, and seed development stages. Expression of <i>LcSOC1-a</i> seems to be involved in the transition to flowering and FT, whereas expression of <i>LcSOC1-b2</i> was strongly associated with HFP but not FT. Two haplotypes with two SNP each were identified in <i>LcSOC1-b2</i> among eight sequenced lentil accessions, and an SNP-based ASQ marker was developed and used for genotyping of a lentil germplasm collection. Significant association between <i>LcSOC1-b2</i> haplotypes and HFP was found in this study, indicating a primary role for this gene in internode length, potentially by regulating cell number.
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spelling doaj-art-e85bd56e93e041f59b8a31482720f82c2025-08-20T03:13:55ZengMDPI AGPlants2223-77472025-04-01148115710.3390/plants14081157Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)Marzhan Kuzbakova0Gulmira Khassanova1Satyvaldy Jatayev2Nurgul Daniyeva3Crystal Sweetman4Colin L. D. Jenkins5Kathleen L. Soole6Yuri Shavrukov7Faculty of Agronomy, S.Seifullin Kazakh AgroTechnical Research University, Astana 010000, KazakhstanFaculty of Agronomy, S.Seifullin Kazakh AgroTechnical Research University, Astana 010000, KazakhstanFaculty of Agronomy, S.Seifullin Kazakh AgroTechnical Research University, Astana 010000, KazakhstanCore Facilities, Nazarbayev University, Astana 010000, KazakhstanCollege of Science and Engineering, Biological Sciences, Flinders University, Adelaide, SA 5042, AustraliaCollege of Science and Engineering, Biological Sciences, Flinders University, Adelaide, SA 5042, AustraliaCollege of Science and Engineering, Biological Sciences, Flinders University, Adelaide, SA 5042, AustraliaCollege of Science and Engineering, Biological Sciences, Flinders University, Adelaide, SA 5042, AustraliaStem internode length determines height to first pod (HFP), an important trait for mechanical harvesting in legume crops. In the present study, this trait in lentil was (<i>Lens culinaris</i> Medik.) examined using scanning electron microscopy (SEM) of epidermal cells in stem internodes of two parents, Flip92-36L and ILL-1552, with long and short HFP, respectively. No significant differences in cell length, but differences in cell width were seen. This indicates that HFP was determined by cell number rather than cell length. The candidate gene family for HFP, <i>Suppressor of Overexpression of Constans 1</i> (<i>SOC1</i>), a member of the MADS-box transcription factor family, controls both flowering time (FT) and HFP traits. Six <i>LcSOC1</i> genes were identified in this study, and their expression was analysed. Most of the genes studied showed constitutive expression during vegetative growth, flowering, and seed development stages. Expression of <i>LcSOC1-a</i> seems to be involved in the transition to flowering and FT, whereas expression of <i>LcSOC1-b2</i> was strongly associated with HFP but not FT. Two haplotypes with two SNP each were identified in <i>LcSOC1-b2</i> among eight sequenced lentil accessions, and an SNP-based ASQ marker was developed and used for genotyping of a lentil germplasm collection. Significant association between <i>LcSOC1-b2</i> haplotypes and HFP was found in this study, indicating a primary role for this gene in internode length, potentially by regulating cell number.https://www.mdpi.com/2223-7747/14/8/1157cell length and widthepidermal cellflowering time (FT)gene expressionhaplotypeheight to first pod (HFP)
spellingShingle Marzhan Kuzbakova
Gulmira Khassanova
Satyvaldy Jatayev
Nurgul Daniyeva
Crystal Sweetman
Colin L. D. Jenkins
Kathleen L. Soole
Yuri Shavrukov
Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
Plants
cell length and width
epidermal cell
flowering time (FT)
gene expression
haplotype
height to first pod (HFP)
title Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
title_full Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
title_fullStr Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
title_full_unstemmed Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
title_short Longer Internode with Same Cell Length: <i>LcSOC1-b2</i> Gene Involved in Height to First Pod but Not Flowering in Lentil (<i>Lens culinaris</i> Medik.)
title_sort longer internode with same cell length i lcsoc1 b2 i gene involved in height to first pod but not flowering in lentil i lens culinaris i medik
topic cell length and width
epidermal cell
flowering time (FT)
gene expression
haplotype
height to first pod (HFP)
url https://www.mdpi.com/2223-7747/14/8/1157
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