SylbV01-00-00. pmd

VI. Theory
BLOCK 1: Genetics of silkworm
Unit 1:
Cytology
Ancestor and cytological basis of origin of silkworms. Cytological aspects
of silkgland and achievements in deciphering molecular biology of silk
gene. Hormonal control mechanisms.
Unit 2:
Reproductive biology
Phenomena of spermatogenesis and oogenesis with relevance to crossing
over, cell division types in silkworms, synaptonemal complex,
fertilization, chromosomes in silkworms. Sex determination,
parthenogenesis, polyploidy, mosaics.
Unit 3:
Inheritance of characters
Hereditary traits of importance in egg, larva, pupa-cocoon and adult.

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Restructured and Revised Syllabi of Post-graduate Programmes
Vol. 1
740
E- Group as a tool in genetics and significance. Linkage groups in
silkworms. Sex linked inheritance, Quantitative and Qualitative
Characters in silkworm breeding. Genetics of cocoon colours. 
Bombyx
mori
L. genome and latest genome sequence, Translocation of characters
in metamorphic stages.
BLOCK 2:
Breeding of silkworm
Unit 1:
Silkworm breeding resources
Multivoltine and bivoltine races and hybrids. Silkworm germplasm
and resource potential.
Unit 2:
Methods of silkworm breeding
Methods of silkworm breeding and their importance with relevance to
Indian scenario. Breeding for thermotolerance, disease resistance,
special characters required for the nation and also for silk export. Sex
linked and sexlimited races- their importance and need of the hour,
Authorization and release of silkworm races.
VII. Practicals
• Study of mitosis and meiosis in silkworm;
• Study of oogenesis in silkworm;
• Study of spermatogenesis and fertilization in silkworms;
• Study of important hereditary traits in egg and larva of silkworm 
Bombyx mori
L.;
• Study of important hereditary traits of pupa and cocoons of silkworm 
Bombyx
mori
L.;
• Study of important hereditary traits of adult 
Bombyx mori
L.;
• Study of Marker genes and linkage groups in silkworm;
• Study of heterosis - working out heterosis, heterobeltiosis and standard heterosis
for economic characters;
• Study of silkworm germplasam;
• Study of biometrical methods in silkworm breeding;
• Study of modern methods of silkworm breeding;
• Study of induction of parthenogenesis in silkworm breeds;
• Study of induction of polyploidy in silkworm breeds;
• Study of conventional methods of silkworm breeding;
• Study of breeding of newly evolved silkworm breeds;
• Study of breeding of non-mulberry silkworms;
• Study of breeding plans;
• Visit to CSGRC,CSB, Hosur.