Although eri silk is produced in Brazil, Vietnam, Epub 2015 Oct 22. The eri silkworms fed on leaves of GAUCH -1 cultivar showed marked variation with respect to larval weight and larval duration of chawki worms. Silk sericin is a family of water-soluble proteins extracted from the silkworm cocoon. The silkworm is reared feeding primarily the leaves of castor and kesseru plant. 1. It was observed that castor is better than borpat leaves for rearing of eri silkworm during spring and autumn season in Assam. silkworm, Samia ricini (Donovan). 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. Proceedings of the National Workshop on Eri Food Plants, October 11-12, 2006, Guwahati, India -. influences the growth and development of silkworm and overall silk production [5]. 2006). Gauhati university. 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. [7]. 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. 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. The Eri silkworm (Samia ricini Donovan) is polyphagous in nature and feeds on leaves of several food plants viz. Walk-in Date: 10/12/2020. India is the only country in the world, producing all the viz- eri, muga, mulberry, tropical tasar and temperate tasar. The Saturniidae member eri-silkworm (Samia cynthia ricini) also produces silk that is commercially-available. Eri culture is mostly confined to the Brahmaputra valley in the tribal-inhabited districts. India is one of the world principal producers of castor seed. Eri silk is produced by Samia cynthia ricini). 2006).It is believed to have originated in the Brahmaputra valley (Jolly et al. Eri silkworm feeds primarily on Castor leaves (Ricinus communis Linn). Kesseru leaves are coarse and fibrous. ABSTRACT. Pradeep AR(1), Jingade AH, Singh CK, Awasthi AK, Kumar V, Rao GC, Prakash NB. Media in category "Samia ricini" The following 3 files are in this category, out of 3 total. The culture is practiced to meet the partial need of warm clothing. 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. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. Castor plant belongs to the family Euphorbiaceae and is a primary food plant of eri silkworm. 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). It is also practised in few districts of the neighbouring states, mainly Meghalaya, Nagaland, Manipur, Mizoram and Arunachal Pradesh. 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. 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. 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). Among the commercially exploited non-mulberry silkworms, the eri silkworm, Samia ricini Donovan is the only species domesticated completely and adapted to [4]. Eri silkworm (Samia cynthia ricini Boisduval) is a non-mulberry domesticated silkworm belongs to the family Saturnidae of the order Lepidoptera. 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) Chowdhary, S.N., 2006. 5 closest to the family Bombycidae including B. mori. INTRODUCTION Eri silkworm, Samia ricini (Donovan) is a multivoltine insect and largely reared by the farmers of North Eastern India, particularly in Assam. Eri silkworm, Samia ricini (Donovan) is multivoltine and has several broods in a year. S. cynthia has a reduced chromosome number, ranging from 2n=25 to 2n=28 and is about half that of Bombyx mori. 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. 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). Samia cynthia ricini Boisduval, 1854. Title Samia cynthia versus Bombyx mori : ... Samia cynthia, a wild silkmoth, belongs to the family Saturniidae which is . 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. 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. Eri silkworm is a polyphagous insect and castor is the preferred host for its rearing. Kesseru plants grow up to 1000 m MSL. 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. Moreover, eri pupae are popular as delicacy among the tribal people of this region. 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. Around 1.32 lakhs families of Assam are involved in eri culture. Abstract: The eggshell of the eri moth, Samia ricini (Donovan) (Lepidoptera: Saturniidae) was investigated by scanning electron microscopy. It is perennial in nature and is widely distributed in the North Eastern States of India, both in wild and cultivated condition. Central Muga Eri Research & Training Institute (CMER&TI), Jorhat. Genetic analysis of scattered populations of the Indian eri silkworm, Samia cynthia ricini Donovan: Differentiation of subpopulations. 23-Indian-Insect-Life - Harold Maxwell-Lefroy - Attacus-ricini.jpg 1,720 × 2,477; 3 MB Eri sericulture. 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. 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. It is believed to have originated in Table 1 Information of the studied insects Sl. 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. 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. Food plants of eri silkworm, Samia ricini (DONOVAN) their rearing performance and prospects for exploitation. 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… It is multivoltine in nature and reared in indoor conditions. Silk production based on these moths, especially B. mori, A. pernyi and S. cynthia ricini, plays an economically 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. 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). 2016 Dec;23(6):791-804. doi: 10.1111/1744-7917.12251. Ph D thesis. Mulberry silk is produced on large scale throughout the country. Eri culture is an age old agro-based small scale industry of the region. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. Abstract. Castor (Ricinus communis), Tapioca (Manihot esculenta), Barara (Jatropha curcas), and Papaya (Carica papaya). 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. It ranks second among all the food plant of eri silkworm Samia ricini (Donovan) next to castor. Kesseru (Heteropanax fragrans, Seem) belongs to Ginseng family Araliaceae. The other secondary host plants which are used during scarcity of primary host plants are borpat, barkesseru, tapioca, payam, gulanch, papaya, etc. Sakar, B.N. It is purely a traditional and a leisure time occupation. Meneville, A. assamensis Helfer and Samia ricini Donovan (Jolly, 1985) belonging to the family Saturniidae. Author information: (1)Seribiotech Research Laboratory, CSB Campus, Carmelaram P.O., Bangalore, Karnataka, India. S. ricini silkworms are utilized for the production of silk with unique thermal properties. 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). It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. Sen, R., Ahsan, M., Datta,R.K. (2013) A study on Eri silkworm Samia ricini Donovan ecoraces with special reference to seed production. 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. 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