Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers

Rough lemon (Citrus jambhiri Lush) is one of the leading citrus rootstock around the world besides sour orange. In the present studies, rough lemon was crossed with X 639 and Swingle citrumelo at Department of Fruit Science, PAU Ludhiana during 2015-16. Cent per cent seed germination was recorded f...

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Main Authors: Jagveer Singh, H S Dhaliwal, Anirudh Thakur, G S Sidhu, P Chhuneja, Kuldeep Pandey
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2020-07-01
Series:The Indian Journal of Agricultural Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAgS/article/view/102232
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author Jagveer Singh
H S Dhaliwal
Anirudh Thakur
G S Sidhu
P Chhuneja
Kuldeep Pandey
author_facet Jagveer Singh
H S Dhaliwal
Anirudh Thakur
G S Sidhu
P Chhuneja
Kuldeep Pandey
author_sort Jagveer Singh
collection DOAJ
description Rough lemon (Citrus jambhiri Lush) is one of the leading citrus rootstock around the world besides sour orange. In the present studies, rough lemon was crossed with X 639 and Swingle citrumelo at Department of Fruit Science, PAU Ludhiana during 2015-16. Cent per cent seed germination was recorded for both the crosses under in vitro conditions but, the germination rates with growing media in plug trays were significantly lower (91.3 and 89.2% for RL× X and RL × SC, respectively). Higher proportion of multi-foliate seedlings (26.89%) was recovered by in vitro seed culture over the ex vitro seed germination (5.20%). All the multi-foliate seedlings were confirmed by SSR analysis using two primers (F 29 and F 87). The SSR analysis showed that only 85% multifoliate seedlings were zygotic while, the rest were not confirmed to be zygotic. The SSR analysis of the 50 unifoliate F1 seedlings each from both the crosses with 5 SSR primers differentiated seedlings into two groups, viz. zygotic and nucellar seedlings. In RL × X cross, the most efficient SSR marker was F29, which identified 30% F1 unifoliate seedlings to be zygotic followed by CCSME31, which identified 26% unifoliate seedlings as zygotic seedlings while the remaining seedlings were nucellar. In the cross RL × SC, the primer F29 was most efficient as it identified 28% zygotic seedlings and 72% nucellar seedlings whereas, the primer F87 identified 24 and 76% zygotic and nucellar seedlings, respectively.
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spelling doaj.art-a64c8884fffc4ba190b176c88e5334682023-02-14T09:09:53ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192020-07-0190410.56093/ijas.v90i4.102232Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markersJagveer Singh0H S Dhaliwal1Anirudh Thakur2G S Sidhu3P Chhuneja4Kuldeep Pandey5Punjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, India Rough lemon (Citrus jambhiri Lush) is one of the leading citrus rootstock around the world besides sour orange. In the present studies, rough lemon was crossed with X 639 and Swingle citrumelo at Department of Fruit Science, PAU Ludhiana during 2015-16. Cent per cent seed germination was recorded for both the crosses under in vitro conditions but, the germination rates with growing media in plug trays were significantly lower (91.3 and 89.2% for RL× X and RL × SC, respectively). Higher proportion of multi-foliate seedlings (26.89%) was recovered by in vitro seed culture over the ex vitro seed germination (5.20%). All the multi-foliate seedlings were confirmed by SSR analysis using two primers (F 29 and F 87). The SSR analysis showed that only 85% multifoliate seedlings were zygotic while, the rest were not confirmed to be zygotic. The SSR analysis of the 50 unifoliate F1 seedlings each from both the crosses with 5 SSR primers differentiated seedlings into two groups, viz. zygotic and nucellar seedlings. In RL × X cross, the most efficient SSR marker was F29, which identified 30% F1 unifoliate seedlings to be zygotic followed by CCSME31, which identified 26% unifoliate seedlings as zygotic seedlings while the remaining seedlings were nucellar. In the cross RL × SC, the primer F29 was most efficient as it identified 28% zygotic seedlings and 72% nucellar seedlings whereas, the primer F87 identified 24 and 76% zygotic and nucellar seedlings, respectively. https://epubs.icar.org.in/index.php/IJAgS/article/view/102232Citrus breedingEmbryo rescueMulti-foliate seedlings and rootstock.
spellingShingle Jagveer Singh
H S Dhaliwal
Anirudh Thakur
G S Sidhu
P Chhuneja
Kuldeep Pandey
Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
The Indian Journal of Agricultural Sciences
Citrus breeding
Embryo rescue
Multi-foliate seedlings and rootstock.
title Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
title_full Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
title_fullStr Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
title_full_unstemmed Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
title_short Ex vitro recovery of rough lemon (Citrus jambhiri) hybrids and identification with SSR markers
title_sort ex vitro recovery of rough lemon citrus jambhiri hybrids and identification with ssr markers
topic Citrus breeding
Embryo rescue
Multi-foliate seedlings and rootstock.
url https://epubs.icar.org.in/index.php/IJAgS/article/view/102232
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