Food plants of eri silkworm, Samia ricini (DONOVAN) their rearing performance and prospects for exploitation. Epub 2015 Oct 22. kokrajhar) of eri silkworm (Samia ricini Donovan) by feeding them with two different food plants viz., castor and borpat separately during spring and autumn season by maintaining four replications in each treatment combination during rearing period. he domesticated vanya silkworm, Samia of t cynthia ricini Boisduval, as castor has been adjudged as the better food plant for production of valuable eri cocoons. INTRODUCTION Eri silkworm, Samia ricini (Donovan) is a multivoltine insect and largely reared by the farmers of North Eastern India, particularly in Assam. Sen, R., Ahsan, M., Datta,R.K. It was observed that castor is better than borpat leaves for rearing of eri silkworm during spring and autumn season in Assam. Sakar, B.N. Junior Research Fellow Name of project: AIB-5012SI Inter and Intra specific hybridization for improvement of Eri silkworm, Samia ricini (Donovan) (CSB funded project) Educational Qualification: 1st class MSc in Life Sciences / Agriculture with specialization in genetics and breeding (preferably) Samia cynthia ricini (Lepidoptera:Saturniidae), the Indian eri silkworm, contributes significantly to the production of commercial silk and is widely distributed in the Brahmaputra river valley in North-Eastern India. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Deforestation and exploitation has led to the fragmentation of habitats and scattering of populations of the economically important eri silkworm, Samia cynthia ricini, in north-east India. It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. The surface of the egg chorion of eri moth, revealed the structural elements viz., the micropylar rosette surrounding the micropyle, micropylar canals, shell imprints, aeropyles and the regional differentiation at the different poles. It is also practised in few districts of the neighbouring states, mainly Meghalaya, Nagaland, Manipur, Mizoram and Arunachal Pradesh. Samia cynthia, the ailanthus silkmoth, is a saturniid moth, used to produce silk fabric but not as domesticated as the silkworm, Bombyx mori.The moth has very large wings of 113–125 mm (4.4–4.9 in), with a quarter-moon shaped spot on both the upper and lower wings, whitish and yellow stripes and brown background. (2013) A study on Eri silkworm Samia ricini Donovan ecoraces with special reference to seed production. S. cynthia has a reduced chromosome number, ranging from 2n=25 to 2n=28 and is about half that of Bombyx mori. Walk-in Date: 10/12/2020. Ph D thesis. Species in the Saturniidae family produce an especially wide variety of cocoons, for example, large, … Gene expression analysis in the larval silk gland of the eri silkworm Samia ricini Insect Sci. [7]. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. the eri silkworm Samia ricini (Donovan). The Saturniidae member eri-silkworm (Samia cynthia ricini) also produces silk that is commercially-available. Castor (Ricinus communis L.) belonging to the family Euphorbiaceae is an annual or perennial herb which is being utilized as a primary host/food plant by the mul-tivoltine sericigenous insect Samia ricini Donovan (eri silkworm). S. ricini silkworms are utilized for the production of silk with unique thermal properties. The genus Samia contains 19 species from tropical and temperate eastern Asia (Naumann and Peigler, 2001; Peigler and Naumann, 2003), while Arora and Gupta (1979) reported but a single species S. cynthia with several sub species from India including S. ricini. Chowdhary, S.N., 2006. Although eri silk is produced in Brazil, Vietnam, Central Muga Eri Research & Training Institute (CMER&TI), Jorhat. Here, we established expression sequence tags from the silk gland of the eri silkworm ( Samia ricini ), a saturniid species, and used these to analyze gene expression. Samia cynthia ricini (Lepidoptera:Saturniidae), the Indian eri silkworm, contributes significantly to the production of commercial silk and is widely distributed in the Brahmaputra river valley in North-Eastern India. It is perennial in nature and is widely distributed in the North Eastern States of India, both in wild and cultivated condition. In our previous research, DNJ had a positive impact on reverse glycometabolism by modulating glycometabolism and inhibiting glucogenesis and energy metabolism ( Deng et al., 2015 , Wen et al., 2016 ). ABSTRACT. Moreover, eri pupae are popular as delicacy among the tribal people of this region. At the species level, A. pernyi and B. mori showed high levels of genetic diversity, whereas S. cynthia ricini showed low level of genetic diversity. It is multivoltine in nature and reared in indoor conditions. Mulberry silk is produced on large scale throughout the country. Abstract: The eggshell of the eri moth, Samia ricini (Donovan) (Lepidoptera: Saturniidae) was investigated by scanning electron microscopy. Studies have been attempted to recycle the sericin waste from mulberry Bombyx mori sericulture to develop value-added products in the biomedical, pharmaceutical, cosmetic, and food industries. 2006).It is believed to have originated in the Brahmaputra valley (Jolly et al. Pradeep AR(1), Jingade AH, Singh CK, Awasthi AK, Kumar V, Rao GC, Prakash NB. Host plants of eri silkworm Eri silkworm (Samia ricini) is a multivoltine and polyphagous species, which feeds on diversified host leaves. In the traditional eri growing area of North East India, the farmers conduct eri rearing in four crop seasons, that is, spring, summer, autumn and winter due to spent time in others agricultural crop. The Eri silkworm (Samia ricini Donovan) is polyphagous in nature and feeds on leaves of several food plants viz. Although gene expression in the silk gland of the domestic silkworm (Bombyx mori L.) has been extensively studied, considerably fewer investigations have focused on members of the saturniid family. The eri-silkworm, S. c. ricini, belongs to the lepidopteran family Bombycidae and is a good model organism for biochemistry research (Kimura et al., 2004, Asai et al., 2011). Eri silkworm feeds primarily on Castor leaves (Ricinus communis Linn). The culture is practiced to meet the partial need of warm clothing. India is one of the world principal producers of castor seed. 1. silkworm, Samia ricini (Donovan). Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. The genetic diversity and genetic structure of three Chinese silkworm species Bombyx mori L., Antheraea pernyi Guérin-Meneville and Samia cynthia ricini Donovan were comparatively assessed based on RAPD markers. Media in category "Samia ricini" The following 3 files are in this category, out of 3 total. Proceedings of the National Workshop on Eri Food Plants, October 11-12, 2006, Guwahati, India -. Although gene expression in the silk gland of the domestic silkworm (Bombyx mori L.) has been extensively studied, considerably fewer investigations have focused on members of the saturniid family. It is purely a traditional and a leisure time occupation. The eri silkworms fed on leaves of GAUCH -1 cultivar showed marked variation with respect to larval weight and larval duration of chawki worms. Kesseru plants grow up to 1000 m MSL. It ranks second among all the food plant of eri silkworm Samia ricini (Donovan) next to castor. Larvae of the eri silkworm Samia ricini (Lepidoptera; Saturniidae) also have a white and opaque integument, ... CDS is 438 base pairs in length, and an InterProScan search of the deduced amino acid sequence revealed that SrBLOS2 belongs to the BLOS2 family (IPR019269). Eri silk is produced by Samia cynthia ricini). It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. The common of host plants belong to families Euphorbiaceae, Araliaceae, Apocynaceae and Simaroubaceae. Abstract. Eri silkworm, Samia cynthia ricini Boisduval was reared using eight castor cultivars viz., DCH-519, 48-1, DCS-9, GCH-4, DCH-177, GAUCH-1, JC-12 and Bangalore local. Gauhati university. Silk sericin is a family of water-soluble proteins extracted from the silkworm cocoon. Eri silkworm, Samia ricini (Donovan) is multivoltine and has several broods in a year. 2016 Dec;23(6):791-804. doi: 10.1111/1744-7917.12251. GROWTH AND ECONOMIC PARAMETERS OF ERI SILKWORM REARING FED ON DIFFERENT VARIETIES OF CASTOR LEAVES A Case study of Bhergaon Sub-Division, Udalguri, BTAD, Assam… Around 1.32 lakhs families of Assam are involved in eri culture. Among the commercially exploited non-mulberry silkworms, the eri silkworm, Samia ricini Donovan is the only species domesticated completely and adapted to [4]. Eri culture is mostly confined to the Brahmaputra valley in the tribal-inhabited districts. Eri silkworm (Samia cynthia ricini Boisduval) is a non-mulberry domesticated silkworm belongs to the family Saturnidae of the order Lepidoptera. influences the growth and development of silkworm and overall silk production [5]. Samia cynthia ricini Boisduval, 1854. The other secondary host plants which are used during scarcity of primary host plants are borpat, barkesseru, tapioca, payam, gulanch, papaya, etc. oak silkworm (Antheraea pernyi Guérin-Meneville), the Indian tropical tasar silkworm (Antheraea mylitta Drury), the Japanese oak silkworm (Antheraea yamamai Guérin-Meneville), and the eri silkworm (Samia cynthia ricini Donovan). It is believed to have originated in Table 1 Information of the studied insects Sl. Samia ricini only exists in captivity, derived from its wild progenitor Samia canningi (Hutton), a species that flies primarily in the foothills and mountains of the sub-Himalayan region, although it is also found in river valleys (lowlands). Kesseru leaves are coarse and fibrous. Silk production based on these moths, especially B. mori, A. pernyi and S. cynthia ricini, plays an economically 2006). Eri sericulture. Meneville, A. assamensis Helfer and Samia ricini Donovan (Jolly, 1985) belonging to the family Saturniidae. Castor plant belongs to the family Euphorbiaceae and is a primary food plant of eri silkworm. Eri silkworm, Samia ricini Donovan, (Lepidoptera: Saturniidae) is a domesticated non mulberry silkworm and polyphagous in nature. 5 closest to the family Bombycidae including B. mori. 23-Indian-Insect-Life - Harold Maxwell-Lefroy - Attacus-ricini.jpg 1,720 × 2,477; 3 MB The silkworm is reared feeding primarily the leaves of castor and kesseru plant. Kesseru (Heteropanax fragrans, Seem) belongs to Ginseng family Araliaceae. Eri silkworm is a polyphagous insect and castor is the preferred host for its rearing. Genetic analysis of scattered populations of the Indian eri silkworm, Samia cynthia ricini Donovan: Differentiation of subpopulations. India is the only country in the world, producing all the viz- eri, muga, mulberry, tropical tasar and temperate tasar. Castor (Ricinus communis), Tapioca (Manihot esculenta), Barara (Jatropha curcas), and Papaya (Carica papaya). 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