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Quantitative trait loci and candidate genes associated with starch pasting viscosity characteristics in cassava (Manihot esculenta Crantz)
Thanyasiriwat T. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Quantitative trait loci and candidate genes associated with starch pasting viscosity characteristics in cassava (Manihot esculenta Crantz)
ผู้แต่ง / หัวหน้าโครงการ (EN): Thanyasiriwat T.
บทคัดย่อ (EN): Starch pasting viscosity is an important quality trait in cassava (Manihot esculenta Crantz) cultivars. The aim here was to identify loci and candidate genes associated with the starch pasting viscosity. Quantitative trait loci (QTL) mapping for seven pasting viscosity parameters was carried out using 100 lines of an F1 mapping population from a cross between two cassava cultivars Huay Bong 60 and Hanatee. Starch samples were obtained from roots of cassava grown in 2008 and 2009 at Rayong, and in 2009 at Lop Buri province, Thailand. The traits showed continuous distribution among the F1 progeny with transgressive variation. Fifteen QTL were identified from mean trait data, with Logarithm of Odds (LOD) values from 2.77-13.01 and phenotype variations explained (PVE) from10.0-48.4%. In addition, 48 QTL were identified in separate environments. The LOD values ranged from 2.55-8.68 and explained 6.6-43.7% of phenotype variation. The loci were located on 19 linkage groups. The most important QTL for pasting temperature (PT) (qPT.1LG1) from mean trait values showed largest effect with highest LOD value (13.01) and PVE (48.4%). The QTL co-localised with PT and pasting time (PTi) loci that were identified in separate environments. Candidate genes were identified within the QTL peak regions. However, the major genes of interest, encoding the family of glycosyl or glucosyl transferases and hydrolases, were located at the periphery of QTL peaks. The loci identified could be effectively applied in breeding programmes to improve cassava starch quality. Alleles of candidate genes should be further studied in order to better understand their effects on starch quality traits. © 2013 German Botanical Society and The Royal Botanical Society of the Netherlands.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84890909936&doi=10.1111%2fplb.12022&partnerID=40&md5=d0ff2941ccf1a100e0b825f3feb41396
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Viscosity
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Quantitative trait loci and candidate genes associated with starch pasting viscosity characteristics in cassava (Manihot esculenta Crantz)
Thanyasiriwat T.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Quantitative trait loci underlying root yield and starch content in an F1 derived cassava population (Manihot esculenta Crantz) Isolation and Characterization of Microsatellite Loci and Genetic Diversity in Cassava (Manihot esculenta Crantz) Mapping of quantitative trait loci underlying resistance to cassava anthracnose disease Genetic Linkage Map of Cassava (Manihot esculenta Crantz) Based on Rubber Tree and Cassava Simple Sequence Repeat Markers Expression profiles of candidate genes associated with cyanogenic potential in cassava at different growth stages Dissection of gene loci underlying pasting temperature in cassava Enzyme matching design approach on very high gravity liquefaction and saccharification of cassava root and cassava starch for ethanol fermentation Recent understanding of starch biosynthesis in cassava for quality improvement: A review สภาวะที่เหมาะสมต่อการวัดปริมาณไชยาไนด์อิสระในมันสำปะหลัง (Manihot esculenta Crantz) การใช้แบบจำลอง GUMCAS ในการเลือกพันธุ์และช่วงปลูกมันสำปะหลัง (Manihot esculenta Crantz) เฉพาะพื้นที่
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