Effect of Spermidine Supplementation on Testicular And Ovarian Development in Sex-limited and Non-sex-limited Bivoltine Silk Worm Breeds of Bombyx mori L

Indian journal of entomology Pub Date : 2024-01-23 DOI:10.55446/ije.2024.1585

Madhavi Kasa, Brinda Goda Lakshmi Didugu, Seetharamulu Jolapuram, Jagannatha Raju Poosapati, Anitha Mamillapalli

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Abstract

Silk worm Bombyx mori L is a holometabolous, lepidopteran model for investigating the effect of various molecules. The sex-limited character of cocoon color is useful for the separation of male and female pupae during commercial seed production. Fecundity is the major limitation of cocoon colour sex-limited breeds. Spermidine is a polyamine, present in all living cells involved in the growth and reproduction of many organisms. The effect of spermidine on testicular and ovarian development in the selected bivoltine sex-limited breed; APS27SL and non-sex-limited hybrid; APS45 x APS12 is studied in the present work. Results showed that foliar feeding of spermidine significantly increased pupal growth, testicular and ovarian growth, number of ovarioles and ovules in the sex-limited breed. Moreover, increased expression of Bm-tektin was observed in the testes of spermidine fed groups. Thus, the study suggests that foliar feeding of spermidine can be used to overcome the limitation of reproductive potential in sex-limited breeds.

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补充精脒对有性限和无性限双孢菇蚕种睾丸和卵巢发育的影响

丝虫 Bombyx mori L 是一种全代谢鳞翅目昆虫模型，可用于研究各种分子的影响。茧色的性别限制特性有助于在商业种子生产过程中分离雌雄蛹。繁殖力是茧色性别限制品种的主要限制因素。精胺是一种多胺，存在于所有生物细胞中，参与许多生物的生长和繁殖。本实验研究了精胺对所选双峰性限制品种 APS27SL 和非性限制杂交种 APS45 x APS12 的睾丸和卵巢发育的影响。结果表明，叶面喷施亚精胺能显著提高有性限品种的蛹的生长、睾丸和卵巢的生长、卵巢和胚珠的数量。此外，在喂食亚精胺组的睾丸中观察到 Bm-tektin 的表达增加。因此，该研究表明，叶面喷施亚精胺可用于克服性别受限品种的繁殖潜力限制。

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来源期刊

Indian journal of entomology

CiteScore

0.40

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0.00%

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