2006). Chowdhary, S.N., 2006. Genetic analysis of scattered populations of the Indian eri silkworm, Samia cynthia ricini Donovan: Differentiation of subpopulations. 5 closest to the family Bombycidae including B. mori. 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. 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. 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. Abstract: The eggshell of the eri moth, Samia ricini (Donovan) (Lepidoptera: Saturniidae) was investigated by scanning electron microscopy. [7]. Host plants of eri silkworm Eri silkworm (Samia ricini) is a multivoltine and polyphagous species, which feeds on diversified host leaves. Silk production based on these moths, especially B. mori, A. pernyi and S. cynthia ricini, plays an economically Author information: (1)Seribiotech Research Laboratory, CSB Campus, Carmelaram P.O., Bangalore, Karnataka, India. 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. (2013) A study on Eri silkworm Samia ricini Donovan ecoraces with special reference to seed production. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. 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. Walk-in Date: 10/12/2020. Moreover, eri pupae are popular as delicacy among the tribal people of this region. 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. Silk sericin is a family of water-soluble proteins extracted from the silkworm cocoon. Meneville, A. assamensis Helfer and Samia ricini Donovan (Jolly, 1985) belonging to the family Saturniidae. Eri silkworm is a polyphagous insect and castor is the preferred host for its rearing. Samia cynthia ricini Boisduval, 1854. 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 is multivoltine in nature and reared in indoor conditions. It is believed to have originated in Table 1 Information of the studied insects Sl. Gauhati university. Mulberry silk is produced on large scale throughout the country. Eri silkworm feeds primarily on Castor leaves (Ricinus communis Linn). Food plants of eri silkworm, Samia ricini (DONOVAN) their rearing performance and prospects for exploitation. Kesseru leaves are coarse and fibrous. It is also practised in few districts of the neighbouring states, mainly Meghalaya, Nagaland, Manipur, Mizoram and Arunachal Pradesh. 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. 23-Indian-Insect-Life - Harold Maxwell-Lefroy - Attacus-ricini.jpg 1,720 × 2,477; 3 MB It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. 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 ). 2006).It is believed to have originated in the Brahmaputra valley (Jolly et al. silkworm, Samia ricini (Donovan). It ranks second among all the food plant of eri silkworm Samia ricini (Donovan) next to castor. 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. 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. S. ricini silkworms are utilized for the production of silk with unique thermal properties. Eri silkworm, Samia ricini (Donovan) is multivoltine and has several broods in a year. 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). 1. the eri silkworm Samia ricini (Donovan). Proceedings of the National Workshop on Eri Food Plants, October 11-12, 2006, Guwahati, India -. Eri culture is an age old agro-based small scale industry of the region. The Saturniidae member eri-silkworm (Samia cynthia ricini) also produces silk that is commercially-available. 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. India is one of the world principal producers of castor seed. Eri silkworm (Samia cynthia ricini Boisduval) is a non-mulberry domesticated silkworm belongs to the family Saturnidae of the order Lepidoptera. Eri silk is produced by Samia cynthia ricini). The silkworm is reared feeding primarily the leaves of castor and kesseru plant. Although eri silk is produced in Brazil, Vietnam, Eri culture is mostly confined to the Brahmaputra valley in the tribal-inhabited districts. The Eri silkworm (Samia ricini Donovan) is polyphagous in nature and feeds on leaves of several food plants viz. Sen, R., Ahsan, M., Datta,R.K. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. The culture is practiced to meet the partial need of warm clothing. 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. India is the only country in the world, producing all the viz- eri, muga, mulberry, tropical tasar and temperate tasar. It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. 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… Kesseru plants grow up to 1000 m MSL. The eri silkworms fed on leaves of GAUCH -1 cultivar showed marked variation with respect to larval weight and larval duration of chawki worms. 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. Larvae of the eri silkworm Samia ricini (Lepidoptera; Saturniidae) also have a white and opaque integument, ... 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