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การประเมินสมรรถภาพการเจริญเติบโตในกุ้งกุลาดำที่ผสมตามธรรมชาติจากข้อมูลความสัมพันธ์ ทางโมเลกุล (Evaluation of Growth Performance in Black Tiger Shrimp (Penaeus monodon) from Natural Mating with Molecular Relatedness) |
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| รหัสดีโอไอ | |
| Creator | โอปอล์ สิวะสุธรรม |
| Title | การประเมินสมรรถภาพการเจริญเติบโตในกุ้งกุลาดำที่ผสมตามธรรมชาติจากข้อมูลความสัมพันธ์ ทางโมเลกุล (Evaluation of Growth Performance in Black Tiger Shrimp (Penaeus monodon) from Natural Mating with Molecular Relatedness) |
| Publisher | Genetics Society of Thailand |
| Publication Year | 2556 |
| Journal Title | Thai Journal of Genetics |
| Journal Vol. | S.1 |
| Journal No. | S1 (Special Issue 1) |
| Page no. | 426 |
| Keyword | growth performance, Penaeus monodon, natural mating, molecular relatedness |
| ISSN | 8578664 |
| Abstract | The development and application of selective breeding program have been becoming an increasingly important strategy for increasing the economic efficiency of shrimp industry. Reliance on wild populations can impact on the overall hatcheries with unknown pedigree to measuring genetic performance. Besides pedigree, also molecular markers can be used to estimate kinship by relatedness estimators (alias kinship estimators). In this study, we test suitability of estimating genetic parameters in unknown pedigree populations with relatedness estimators (molecular relatedness) method. Growth data in terms of total length at 6 months of age (TL6) collected from 32 families of black tiger shrimp (Penaeus monodon) with natural mating were maintained at Shrimp Quarantine Center at Walailak University in Nakhon Si Thammarat. Starting from genetic relationships of 3,200 randomized offsprings generated from 7 microsatellite loci (BTPm8, BTPm47, CUPmo2, CUPmo15, DPm109, DPm110 and DPm313) as pedigree information before offered to BLUP analysis of genetic parameters including of heritability (h 2 ) and estimated breeding value (EBV) using the Restricted Maximum Likelihood procedure (REML). Genetic parameters were then estimated using molecular relatedness with the genetic relationship generated from 7 microsatellite loci. The results showed that h 2 for TL6 were 0.28?0.16 and the EBV for TL6 ranged from -2.43E+00 to 7.58E+00. Results show that accuracies of genetic parameters obtained with molecular relatedness are comparable. Thus, the selective breeding can be started at beginning of breeding program without any pedigree |
