Jayasankar (Jay) Subramanian

Jay Subramanian



(905) 562-4141 x134


(905) 562-3413


M.Sc. (Hort.) TamilNadu Agricultural University, Coimbatore, India
Ph.D. University of Florida



123 VINE

This program mainly aims at developing new varieties of peach, plum, nectarine and cherries to meet the Ontario fruit industry needs. Apart from continuing traditional breeding that is in place for a long time at Vineland Station, my program also will incorporate recent advances in cell culture and molecular genetics to complement fruit breeding. One of the near term objective is to find ways to control the spread of plum pox virus by utilizing the genetic resources that are available here as well as in other tree fruit breeding programs in the US and Europe.


Selected Publications: 

Characterization of gibberellin-signalling elements during plum fruit ontogeny defines the essentiality of gibberellin in fruit development.  I El-Sharkawy, S Sherif, W El Kayal, A Mahboob, K Abubaker, P Ravindran, AP Jyoti Prakash, PP Kumar, S Jayasankar Plant Molecular Biology 89:399-413; DOI: 10.1007/s11103-013-0139-8    2014


Cloning and differential expression of a plum single repeat-MYB, PdMYB3, in compatible and incompatible interactions during fungal infection A El-kereamy, S Jayasankar Canadian Journal of Plant Science 93 (4), 599-605     2013


PpERF3b, a transcriptional repressor from peach, contributes to disease susceptibility and side branching in EAR-dependent and-independent fashions S Sherif, I El-Sharkawy, G Paliyath, S Jayasankar Plant cell reports, 32: 1111-1124       2013


Identification and genetic characterization of a gibberellin 2-oxidase gene that controls tree stature and reproductive growth in plum I El-Sharkawy, W El Kayal, D Prasath, H Fernández, M Bouzayen, AM Svircev, S Jayasankar Journal of experimental botany 63 (3), 1225-1239   8  2012


Molecular characterization of peach PR genes and their induction kinetics in response to bacterial infection and signaling molecules S Sherif, G Paliyath, S Jayasankar Plant cell reports, 1-15       4  2012


Differential expression of peach ERF transcriptional activators in response to signaling molecules and inoculation with Xanthomonas campestris pv. pruni
S Sherif, I El-Sharkawy, G Paliyath, S Jayasankar Journal of plant physiology 169 (7), 731-739    3  2012


Expression of auxin-binding protein1 during plum fruit ontogeny supports the potential role of auxin in initiating and enhancing climacteric ripening
I El-Sharkawy, S Sherif, A Mahboob, K Abubaker, M Bouzayen, S Jayasankar Plant cell reports 31 (10), 1911-1921     1  2012

Ethephon-Induced Abscission of “Redhaven” Peach A Taheri, JA Cline, S Jayasankar, PK Pauls American Journal of Plant Sciences 3 (2), 295-301     2012


A WD-repeat gene from peach (Prunus persica L.) is a functional ortholog of Arabidopsis thaliana TRANSPARENT TESTA GLABRA1 A Taheri, S Jayasankar, JA Cline, MN Raizada, PK Pauls In Vitro Cellular & Developmental Biology-Plant 48 (1), 23-29    2012


Prunus domestica pathogenesis-related protein-5 activates the defense response pathway and enhances the resistance to fungal infection A El-Kereamy, I El-Sharkawy, R Ramamoorthy, A Taheri, D Errampalli, P Kumar, S Jayasankar PloS one 6 (3), e17973       18  2011


Recent advances in cherry breeding (Invited Mini-Review). Special Issue on Temperate Fruits. S Jayasankar, F Kappel Global Science Books - Fruit, Vegetable and Cereal Science and Biotechnology 5 (Special Issue 1): 63-67            2011


European Plum in Vitro Regeneration from different organs. FA Meerja, Y Song, S Sibbald, S Jayasankar, L Tian Global Science Books - Tree and Forestry Science and Biotechnology 5 (Special Issue 1): 61-64            2011


Essential oil extracted from peach Prunus persica kernel and its physicochemical and antioxidant properties H Wu, J Shi, S Xue, Y Kakuda, D Wang, Y Jiang, X Ye, Y Li, S Jayasankar  LWT-Food Science and Technology 44 (10), 2032-2039   4  2011

Cloning and characterization of PR5 gene from Curcuma amada and Zingiber officinale in response to Ralstonia solanacearum infection D Prasath, I El-Sharkawy, S Sherif, KS Tiwary, S Jayasankar Plant cell reports 30 (10), 1799-1809     3  2011


Hexanal and 1-MCP treatments for enhancing the shelf life and quality of sweet cherry Prunus avium L. M Sharma, JK Jacob, S Jayasankar, G Paliyath Scientia Horticulturae 125 (3), 239-247     18  2010

Regulation of two germin-like protein genes during plum fruit development I El-Sharkawy, I Mila, M Bouzayen, S Jayasankar Journal of experimental botany 61 (6), 1761-1770   12  2010


Molecular characterization of seven genes encoding ethylene-responsive transcriptional factors during plum fruit development and ripening I El-Sharkawy, S Sherif, I Mila, M Bouzayen, S Jayasankar Journal of Experimental Botany 60 (3), 907-922    38  2009

Expression analysis of a plum pathogenesis related 10 (PR10) protein during brown rot infection A El-kereamy, S Jayasankar, A Taheri, D Errampalli, G Paliyath
Plant cell reports 28 (1), 95-102      16  2009


Differential regulation of four members of the ACC synthase gene family in plum I El-Sharkawy, WS Kim, S Jayasankar, AM Svircev, DCW Brown Journal of experimental botany 59 (8), 2009-2027   23  2008

Phospholipase D inhibition technology for enhancing shelf life and quality G Paliyath, S Jayasankar Postharvest Biology and Technology of Fruits, Vegetable, and Flowers, 443   2008


Changes in nutritional quality of fruits and vegetables during storage M Sharma, C Sitbon, S Jayasankar, G Paliyath Postharvest Biology and Technology of Fruits, Vegetables, and Flowers, 443  2008

Isolation and characterization of four ethylene signal transduction elements in plums (Prunus salicina L.) I El-Sharkawy, WS Kim, A El-Kereamy, S Jayasankar, AM Svircev, DCW Brown Journal of Experimental Botany 58 (13), 3631-3643   27  2007


Characterization of Prunus domestica L. in vitro regeneration via hypocotyls L Tian, S Sibbald, S Jayasankar, A Svircev Scientia horticulturae 112 (4), 462-466     15  2007

Regeneration of Prunus salicina Lindl (Japanese plum) from hypocotyls of mature seeds L Tian, Y Wen, S Jayasankar, S Sibbald In Vitro Cellular & Developmental Biology-Plant 43 (4), 343-347  14  2007


Variation in total phenolics and antioxidant capacity among European plum genotypes HP Rupasinghe, S Jayasankar, W Lay Scientia horticulturae 108 (3), 243-246     47  2006

Low temperature storage of suspension culture-derived grapevine somatic embryos and regeneration of plants S Jayasankar, M Van Aman, J Cordts, S Dhekney, ZT Li, DJ Gray In Vitro Cellular & Developmental Biology-Plant 41 (6), 752-756  11  2005


A Simple Illumination System for Visualizing Green Fluorescent Protein DJ Gray, S Jayasankar, ZT Li  Plant Development and Biotechnology, 273-276      2005

Bi-directional duplex promoters with duplicated enhancers significantly increase transgene expression in grape and tobacco ZT Li, S Jayasankar, DJ Gray Transgenic research 13 (2), 143-154     50  2004


Comparative anatomy and morphology of Vitis vinifera (Vitaceae) somatic embryos from solid-and liquid-culture-derived proembryogenic masses S Jayasankar, BR Bondada, Z Li, DJ Gray  American journal of botany 90 (7), 973-979    30  2003

Constitutive expression of Vitis vinifera thaumatin-like protein after in vitro selection and its role in anthracnose resistance S Jayasankar, Z Li, DJ Gray Functional plant biology 30 (11), 1105-1115    24  2003


In vitro selection for disease resistance in plants-an alternative to genetic engineering S Jayasankar, DJ Gray AgBiotechNet 5, 1-5       8  2003

A unique morphotype of grapevine somatic embryos exhibits accelerated germination and early plant development S Jayasankar, B Bondada, Z Li, D Gray
Plant Cell Reports 20 (10), 907-911     19  2002


Expression of a bifunctional green fluorescent protein (GFP) fusion marker under the control of three constitutive promoters and enhanced derivatives in transgenic grape (Vitis vinifera) Z Li, S Jayasankar, DJ Gray  Plant Science 160 (5), 877-887      75  2001

An improved enzyme-linked immunoabsorbent assay protocol for the detection of small lytic peptides in transgenic grapevines (Vitis vinifera) Z Li, S Jayasankar, DJ Gray Plant Molecular Biology Reporter 19 (4), 341-351   23  2001


Direct seeding of grapevine somatic embryos and regeneration of plants S Jayasankar, M Van Aman, Z Li, DJ Gray In Vitro Cellular & Developmental Biology-Plant 37 (4), 476-479  14  2001

In-vitro selection of Vitis vinifera ‘Chardonnay' with Elsinoe ampelina culture filtrate is accompanied by fungal resistance and enhanced secretion of chitinase
S Jayasankar, Z Li, DJ Gray Planta 211 (2), 200-208       55  2000


High-efficiency somatic embryogenesis and plant regeneration from suspension cultures of grapevine S Jayasankar, DJ Gray, RE Litz Plant Cell Reports 18 (7), 533-537     64  1999

Responses of embryogenic mango cultures and seedling bioassays to a partially purified phytotoxin produced by a mango leaf isolate of Colletotrichum gloeosporioides Penz S Jayasankar, RE Litz, DJ Gray, PA Moon In Vitro Cellular & Developmental Biology-Plant 35 (6), 475-479  24  1999


Characterization of Agrobacterium-mediated transformation of grapevine (Vitis spp.) using the green fluorescent protein (GFP) gene Z Li, S Jayasankar, NJ Barnett, DJ Gray                    In Vitro Cell. Dev. Biol 35      6  1999

Characterization of embryogenic mango cultures selected for resistance to Colletotrichum gloeosporioides culture filtrate and phytotoxin S Jayasankar, RE Litz Theoretical and Applied Genetics 96 (6), 823-831   46  1998


Embryogenic mango cultures selected for resistance toColletotrichum gloeosporioides culture filtrate show variation in random amplified polymorphic DNA (RAPD) markers S Jayasankar, RE Litz, RJ Schnell, AC Hernandez                    


In Vitro Cellular & Developmental Biology-Plant 34 (2), 112-116  25  1998 Temporal effect of 2, 4-D on induction of embryogenic nuclellar cultures and somatic embryo development of ‘Carabao’mango BL Lad, S Jayasankar, F Pliego-Alfaro, PA Moon, RE Litz In Vitro Cellular & Developmental Biology-Plant 33 (4), 253-257  9  1997


Selection and Characterization of Resistance in Mango Embryogenic Cultures to Colletotrichum gloeosporioides Penz. Phytotoxin S Jayasankar, RE Litz, RJ Schnell                       HortScience 31 (4), 695-695        1996

Combining ability in okra (Abelmoschus esculentus L. Moench) S Sivagamasundhari, I Irulappan, R Arumugam, S Jayasankar South Indian Hort 40, 21-27      11  1992


Heterosis in bhendi, S Sivagamasundhari, I Irulappan, R Arumugam, S Jayasankar  South Indian Horticulture, 40: 79-82        1992 

In vitro embryogenesis in cashew (Anacardium occidentale L.) M Hegde, M Kulasekaran, S Jayasankar, KG Shamnungavelu Indian Cashew Journal 21 (4), 17-25     14  1991

In vitro culture of cashew seedlings and multiple plantlets from mature cotyledons. M Hegde, M Kulasekaran, KG Shanmughavelu, S Jayasankar Indian Cashew Journal 20 (2), 19-24     9  1990


Vegetative propagation in Gmelina arborea Roxb. through single node cuttings. Jayasankar S, Rai RSV, Natarajan N, Surendran C Indian J Forestry 13: 162-164         1990


Studies on the rooting of terminal cuttings of Ficus infectoria Roxb. S Jayasankar, N Chezhiyan, MA Khader, K Nanjan South Indian Horticulture 38 (3), 170-172    1  1990

Callus culture in cassava (Manihot esculenta Crantz.). AE Christy, KG Shanmughavelu, S Jayasankar, C Padmanabhan South Indian Horticulture 38 (5), 279-281      1990


Range, mean performance and residual heterosis of F2 intervarietal crosses in chilli (Capsicum annuum) S Jayasankar, I Irulappan, R Arumugam               South Indian Horticulture 34: 147-149       1986


Components of variance and degree of dominance for yield contributing traits in chilli (Capsicum annuum) S Jayasankar, I Irulappan South Indian Horticulture 34: 74-81       1986