A review on correlation, heritability and selection in silkworm breeding

Hemmatabadi, Reza Neshagaran; Seidavi, Alireza; Gharahveysi, Shahabodin

doi:10.1080/09712119.2014.987289

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…In general, data on the evaluation of cross-breeding of different insect strains are scarce and usually oriented towards life table characteristics of the silkworm, B. mori , and the honeybee, Apis mellifera (L.) (Hymenoptera: Apidae), as well as specific biocontrol agents (Eriksson and Picard 2021 ). Several studies related to sericulture have shown that cross-breeding has been a valuable tool in creating new and productive silkworm strains (Doddaswamy et al 2009 ; Neshagaran Hemmatabadi et al 2016 ). For instance, Reddy et al ( 2010 ) reported that the outbred crosses of divergent geographic eco races of B. mori revealed high heterosis potential and good compatibility of parents for yield contributing traits; fecundity, shell weight, and silk ratio.…”

Section: Discussionmentioning

confidence: 99%

Mating compatibility and offspring traits evaluation among different strains of Tenebrio molitor

Adamaki-Sotiraki

Rumbos

Athanassiou

2023

Environ Sci Pollut Res

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The fast-growing sector of insects for food and feed stimulates researchers and the industry to explore uncharted territories, such as insect breeding, to improve economically important insect fitness traits. The yellow mealworm, Tenebrio molitor L., is one of the most thoroughly studied insect species as food and feed. However, data on mating compatibility and the effect of cross-breeding between different strains on the performance and fitness of the hybrids are scarce. In the present study, we comparatively evaluated the mating compatibility between two T. molitor inbred strains (Greek and Italian) and their outbred strains, i.e., Italian (♀)-Greek (♂) and Greek (♀)-Italian (♂), as well as the performance of their hybrid offspring. Based on the results, there is good mating compatibility among adults of the strains tested. Offspring performance, quantified as larval survival and final larval weight, followed a similar pattern among the crossings examined. Even though differences were insignificant, the outbreeding of females of the Italian strain resulted in a higher cumulative number of eggs and hatching rate and higher offspring weight. The present study sheds light on the mating compatibility of different T. molitor strains and their hybrids' economically important life table characteristics to take the mass production of insects one step further.

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Section: Discussionmentioning

confidence: 99%

Mating compatibility and offspring traits evaluation among different strains of Tenebrio molitor

Adamaki-Sotiraki

Rumbos

Athanassiou

2023

Environ Sci Pollut Res

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“…Hatching eggs requires a temperature of 25°C with a humidity of 75-80%. Likewise, according to Gowda and Reddy (2007), environmental conditions will affect the performance of bivoltine hybrids of silkworm Bombyx mori L. Meanwhile, according to Hemmatabadi et al (2016), genetic and environmental factors significantly affect the productivity of a variety, so to increase the quantity and quality of silk, in addition to improving environmental conditions such as nutrition, sanitation, management, and rearing conditions but also must follow the fundamental steps in improving genetic and breeding.…”

Section: Fig 1 Fecundity Of the Twelve Double Crosses Of Silkwormsmentioning

confidence: 99%

“…There was no difference between single and three-way crossings regarding health, such as pupae percentage and larval mortality rate. The two, however, exhibit heterotic differences under suboptimal maintenance settings (Hemmatabadi et al 2016). Additionally, Joge et al (2003) assert that in the situation at hand, the stability of multiple cross hybrids with higher viability is more important than increased productivity.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Eggs and Cocoons Quality of Some Mulberry Silkworm Hybrid Bombyx mori L.

Andadari¹,

Heryati²,

Agustarini³

et al. 2023

J. Sylva Lestari

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Sericulture is one of the non-timber forest products (NTFPs) that can help Indonesians live better lives and support environmental improvement. Silk, as a product of sericulture, is one of the five NTFPs that Indonesia has identified as having the ability to boost the nation’s economy and alleviate poverty. However, there are several issues with the development of silk in Indonesia, chiefly issues with the quality of silkworm seedlings and low cocoon yield. Crossbreeding is one method used to boost egg output. This study aimed to evaluate the eggs and cocoons produced by various silkworm (Bombyx mori L.) crosses. The Pustarhut Laboratory hosted the research from May to August 2022. Twelve treatments were employed in the form of crosses using the Randomized Block Design (RBD) method, and each treatment applied three replicates. Overall, the findings demonstrated that the CE cross ((919 x 927) x (804 x p208)) produced eggs (652 eggs) and cocoons of higher quality than other crossings. However, although the egg numbers of CF cross ((919 × 927) × (p208 × 804)) and FC cross ((p208 × 804) × (919 × 927)) produced 622 and 631 eggs, respectively and were significantly different from CE cross, they still produced egg numbers above 600. In addition, they produced cocoon quality that was not significantly different from CE cross. All finding indicates that silkworms from CE, CF, and FC crosses can be used as an alternative to superior silkworm breeding to increase the productivity of silkworm rearing in Indonesia. Keywords: Bombyx mori, cocoon quality, double-cross, seed quality

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“…Voltinism is a genetic characteristic that defines the number of generations in a year under natural conditions (Porto et al 2004, Cifuentes & Sonh 1998 and is considered maternally inherited, influenced by light and temperature in the different stages of the worm. (Hemmatabadi et al 2016, Hussain et al 2011, Seidavi & Bizhannia 2008. The presence of diapause limits to one or a maximum of two offspring per year (uni or bivoltines) and has longer life cycles, while its absence determines a greater number of offspring per year (polyvoltins) and shorter cycles (Gaviria et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of environmental conditions on the changes of voltinism in three lines of Bombyx mori

Zambrano-González

Almanza-Pinzón

VÉLEZ

et al. 2023

An. Acad. Bras. Ciênc.

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This work aims to estimate the voltinism differences in the studied lines and the influence of biological and environmental variables on this trait. Three Bombyx mori. lines were used. One polyvoltine (Indian, C. Nichi) and two bivoltine (Chinese6-C6 and Japanese7-J7). Silkworms were reared under controlled conditions of temperature (24±1, 26±1, 28±1°C) and photoperiod (8-16, 12-12, 16-8 light/darkness) during the life cycle. The measured biological characters were duration of larval period (DLP), larval weight on fifth day of V instar (LW(V-5)), rate of weight (RWV), duration of life cycle (DLC), fecunditiy (NE), fertility (F) and voltinism (V). Voltinism was estimated using a linear regression model; the variables that influence voltinism were found using a multiple regression analysis; and the effect of environmental conditions on change of voltinism employing an ANOVA. The results show that the variables that affect voltinism are different for each line, which demonstrates the effect of the line factor. Nichi voltinism was affected by the six measured variables, while in C6 and J7 where voltinisms depends on the duration of diapause, some variables were excluded from the model. In Indian tropical polyvoltine, the temperature was the influencing factor, while in Chinese and Japanese bivoltines lines was the photoperiod.

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A review on correlation, heritability and selection in silkworm breeding

Cited by 18 publications

References 39 publications

Mating compatibility and offspring traits evaluation among different strains of Tenebrio molitor

Mating compatibility and offspring traits evaluation among different strains of Tenebrio molitor

Comparison of the Eggs and Cocoons Quality of Some Mulberry Silkworm Hybrid Bombyx mori L.

Effect of environmental conditions on the changes of voltinism in three lines of Bombyx mori

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