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Chadamas Jitlaka. Sweet corn improvement for increasing anthocyanin and tryptophan contents in Kernel. Doctoral Degree(Agronomy). Kasetsart University. Office of the University Library. : Kasetsart University, 2019.
Sweet corn improvement for increasing anthocyanin and tryptophan contents in Kernel
Name: Chadamas Jitlaka
Classification :.LCCS: SB351.C7
LCSH:
Sweet corn
-- Breeding
LCSH:
Sweet corn
-- Seeds
LCSH:
Sweet corn
-- Varieties
LCSH:
Sweet corn.
-- Anthocyanins content
LCSH:
Sweet corn
-- Tryptophan content
LCSH:
Anthocyanins
LCSH:
Tryptophan
Abstract:
The shrunken-2 (sh2sh2), purple (PrPrCC) and opaque-2 (o2o2) genes of corn are located on chromosomes 3, 5 and 7, respectively. If these three genes are combined into a plant and the expression of them is positive, reflecting an increase in anthocyanin and high tryptophan content in the endosperm of sweet corn, it would be more beneficial to consumer health. The objective of this study was to integrate the purple and opaque-2 genes from purple opaque-2 waxy corn into sweet corn. The purple opaque-2 waxy corn was crossed with sweet corn inbred lines to obtain F1 hybrids. In the segregation of S1 progenies, 81 plants were detected with the opaque-2 gene by a simple sequence repeat (SSR) marker, phi057, and were self-pollinated to S2 line to fix the opaque-2 gene. From the S2 ears, only the purple or red wrinkled kernels were selected and planted to obtain the fixed shrunken-2 gene in S3 lines.
In the selected S4 purple opaque-2 line, the tryptophan content in the endosperm of the opaque-2 group ranged from 0.66 to 1.01% while the non-opaque-2 plant had 0.82%. Moreover, S6 lines of purple opaque-2 sweet corn and their F1 hybrids can be developed into red or purple kernels. Therefore, 24 F1 hybrids of purple opaque-2 sweet corn (109-360 mg/100g) had more anthocyanin than the purple check variety (PACS12081A, 71 mg/100g). For the commercial purple opaque-2 sweet corn, L11 × T2 had ear weight with husk about 2,427 kg/rai which was close to the commercial single cross hybrid (Insee2; 2,336 kg/rai). In summary, the combination of three quality mutation traits (PrPrCC, o2o2 and sh2sh2) referred to as the purple opaque-2 sweet corn can be achieved in both inbreeding lines and their F1 hybrids having high anthocyanin, tryptophan content, and sweetness.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Choosak Jompuk
Role:
Thesis Advisor
Name: Krisda Samphantharak
Role:
Thesis Co-Advisor
Created:
2019
Modified:
2025-06-29
Issued:
2025-06-29
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2562/chadamas-jit-all.pdf
CallNumber:
SB351.C7 .C42
eng
DegreeName: Doctor of Philosophy
Level: Doctoral Degree
Descipline: Agronomy
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.022148 วินาที
Chadamas Jitlaka
| Title | Contributor | Type |
|---|---|---|
| Sweet corn improvement for increasing anthocyanin and tryptophan contents in Kernel
มหาวิทยาลัยเกษตรศาสตร์ Chadamas Jitlaka | Choosak Jompuk Krisda Samphantharak | วิทยานิพนธ์/Thesis |
Choosak Jompuk
| Title | Creator | Type and Date Create |
|---|---|---|
| Specificity of avirulence genes of Xanthomonas axonopodis pv glycines on different soybean cultivars
มหาวิทยาลัยเกษตรศาสตร์ Sutruedee Prathuangwong;Burr, Thomas J;Arinthip Thamchaipenet;Choosak Jompuk | Dusit Athinuwat | วิทยานิพนธ์/Thesis |
| Genetic distance and heterotic pattern among single cross hybrids in waxy corn
มหาวิทยาลัยเกษตรศาสตร์ Choosak Jompuk | Kitti Boonlertnirun | วิทยานิพนธ์/Thesis |
| Stability analysis of maize planting across the paddy and maize fields in the dry season of Thailand
มหาวิทยาลัยเกษตรศาสตร์ Choosak Jompuk;Peeranuch Jompuk | Ratha Pha | วิทยานิพนธ์/Thesis |
| Sweet corn improvement for increasing anthocyanin and tryptophan contents in Kernel
มหาวิทยาลัยเกษตรศาสตร์ Choosak Jompuk;Krisda Samphantharak | Chadamas Jitlaka | วิทยานิพนธ์/Thesis |
| Utilization of corn commercial hybrids for germplasm and lines development
มหาวิทยาลัยเกษตรศาสตร์ Choosak Jompuk | Terdsak Suwanatape | วิทยานิพนธ์/Thesis |
Krisda Samphantharak