Exploration of Novel Phenotyping Techniques and Identification of Quantitative Trait Loci for Chip Processing Potatoes
Başlık:
Exploration of Novel Phenotyping Techniques and Identification of Quantitative Trait Loci for Chip Processing Potatoes
Yazar:
Frederick, Curtis M., author.
ISBN:
9780438024168
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (171 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Paul C. Bethke Committee members: Jeffrey B. Endelman; Shelley H. Jansky; Shawn M. Kaeppler; Phil A. Townsend.
Özet:
Processing potatoes (Solanum tuberosum) are an important market segment for North American potato producers and much of this crop is kept in storages over winter. There has been demand for potato varieties that exhibit high dry matter content and the ability to fry out of cold storage conditions. Lenape is a notable variety release in the chip processing potato market segment and is well represented in the pedigree of many commercially grown cultivars. The precise genetic regions that confer improved attributes are unknown, so a Wauseon x Lenape (WxL) population consisting of 191 individuals was evaluated for traits related to processing quality under storage conditions and used to map QTL.
In Chapter 2, metabolite and vacuolar acid invertase (Vinv) relative expression was evaluated after two weeks in abrupt transition, 3°C storage. There were 33 QTL detected in this study. The largest effect QTL (R2=14.4) was for fructose and glucose on chromosome XII and mapped with 2.5 Mb of an invertase inhibitor gene.
In Chapter 3, chip color and stem end chipping defect (SECD) were evaluated at three processing intervals across multiple years. Sixty significant QTL were detected: 9 for SECD, 28 for chip color, 17 for chip color change in storage, 2 for maturity, and 4 for specific gravity. The largest effect QTL for SECD was on chromosome III and mapped to a position within 2 Mb of vacuolar acid invertase.
In Chapter 4, hyperspectral prediction models were developed for estimating dry matter, sucrose, glucose and fructose contents in raw potato tissue from chipping potatoes. We evaluated this technology on individuals from the WxL cross under different tuber dissection techniques, spectral subsets, and spectra transformations using a repeated, randomly sampled cross validation approach. The best prediction was for dry matter using 10 mm slab samples and 700-1450 nm or 700-1800 nm spectra with a mean R2 = 0.757. External application of tissue and spectra parameters to a short wave infrared reflectance camera displayed highly accurate performance for dry matter prediction and has potential as a research device or quality assurance tool in industry.
Notlar:
School code: 0262
Tüzel Kişi Ek Girişi:
Mevcut:*
Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(677936.1) | 677936-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
On Order
Liste seç
Bunu varsayılan liste yap.
Öğeler başarıyla eklendi
Öğeler eklenirken hata oldu. Lütfen tekrar deneyiniz.
:
Select An Item
Data usage warning: You will receive one text message for each title you selected.
Standard text messaging rates apply.