Dergiler / Turkish Journal of Botany / 2015 / Cilt: 39 - Sayı: 2

Evaluation of molecular markers linked to fragrance and genetic diversity in Indian aromatic rice

Sayfa
209–217
Yayın Tarihi
2015-08-13
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Our work validates previously identified markers, namely nksbad2, L06, BADEX7-5, and ESP + IFAP + INSP + EAP, suitable for use in marker-assisted selection programs.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:DNA-based markers have the potential to improve the efficiency and precision of breeding programs based on marker-assisted selection.
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Temel Bulgular & Veri:In the present study we evaluated the predictive abilities of previously reported PCR-based simple sequence repeat and functional markers related to fragrance in a set of 24 rice genotypes, including traditional basmatis, evolved basmatis, and aromatic indigenous landraces.
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Sonuç & Katkı:Our work validates previously identified markers, namely nksbad2, L06, BADEX7-5, and ESP + IFAP + INSP + EAP, suitable for use in marker-assisted selection programs.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Functional markers · landraces · high-resolution melting analysis

Özet

DNA-based markers have the potential to improve the efficiency and precision of breeding programs based on marker-assisted selection. In the present study we evaluated the predictive abilities of previously reported PCR-based simple sequence repeat and functional markers related to fragrance in a set of 24 rice genotypes, including traditional basmatis, evolved basmatis, and aromatic indigenous landraces. High-resolution melting analysis with 3 markers was also performed to detect the presence of SNPs and length polymorphism in monomorphic amplicons. All genotypes showed expected marker patterns according to their fragrance classification except 5 fragrant genotypes: Kalanamak 3119, Kasturi Basmati, Basmati LC 74-3, Thurunbhog, and Jeeraga Samba. The genetic diversity analysis based on fragrance locus grouped the genotypes broadly into 2 major clusters representing fragrant and nonfragrant genotypes. Kalanamak 3119, Kasturi Basmati, and Basmati LC 74-3 comprised the fragrant cluster, while Thurunbhog and Jeeraga Samba clustered with nonfragrant genotypes. None of the functional markers could identify these 5 genotypes as fragrant, which supports the assumption of the existence of a second gene for fragrance in rice. Our work validates previously identified markers, namely nksbad2, L06, BADEX7-5, and ESP + IFAP + INSP + EAP, suitable for use in marker-assisted selection programs.

Abstract

DNA-based markers have the potential to improve the efficiency and precision of breeding programs based on marker-assisted selection. In the present study we evaluated the predictive abilities of previously reported PCR-based simple sequence repeat and functional markers related to fragrance in a set of 24 rice genotypes, including traditional basmatis, evolved basmatis, and aromatic indigenous landraces. High-resolution melting analysis with 3 markers was also performed to detect the presence of SNPs and length polymorphism in monomorphic amplicons. All genotypes showed expected marker patterns according to their fragrance classification except 5 fragrant genotypes: Kalanamak 3119, Kasturi Basmati, Basmati LC 74-3, Thurunbhog, and Jeeraga Samba. The genetic diversity analysis based on fragrance locus grouped the genotypes broadly into 2 major clusters representing fragrant and nonfragrant genotypes. Kalanamak 3119, Kasturi Basmati, and Basmati LC 74-3 comprised the fragrant cluster, while Thurunbhog and Jeeraga Samba clustered with nonfragrant genotypes. None of the functional markers could identify these 5 genotypes as fragrant, which supports the assumption of the existence of a second gene for fragrance in rice. Our work validates previously identified markers, namely nksbad2, L06, BADEX7-5, and ESP + IFAP + INSP + EAP, suitable for use in marker-assisted selection programs.

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Bu Makaleye Atıf Yap

RAI, V. P., SINGH, A. K., JAISWAL, H. K., SINGH, S. P., SINGH, R. P., WAZA, S. A. (2015). Evaluation of molecular markers linked to fragrance and genetic diversity in Indian aromatic rice. Turkish Journal of Botany, Cilt: 39 - Sayı: 2, 209–217. https://ajindex.com/articles/183256

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Kaynakça (12)

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