|
| Research Progresses in Genetic Improvement of Sweet Corn Quality |
| |
| DOI：10.16768/j.issn.1004-874X.2020.11.008 |
|
| Hits: 2000 |
| Download times: 1241 |
| Abstract: |
| Sweet corn is a new crop with the characteristics of fruits, vegetables and crops. It is not only rich in nutrition but also palatable, therefore, it has attracted considerable attention from consumers and scientific researchers worldwide. Sweet corn contains defective genes in starch synthesis resulting in a large accumulation of sugars in the endosperm and serves as one of the main types of fresh corn. Sweet corn can be divided into ordinary sweet corn, super sweet corn and strengthen sweet corn according to the differences of defective genes. Significant differences exist in taste and nutritional quality between different types of sweet corn. Sweetness, crispness, pericarp thickness and flavor. are the main edible quality characteristics of sweet corn. These traits are complex quantitative traits controlled by minorgenes, which bring great challenges in genetic research and breeding improvement. At present, certain progress has been made in researches on sweet corn quality. The researchers identified and analyzed the main evaluation indicators of edible quality （sugar content, pericarp thickness, etc.） and nutritional quality （vitamins, mineral elements, protein content, etc.） of sweet corn, and obtained considerable research results including phenotypic variation, heritability, QTL locus, candidate genes and etc, which provided important theoretical and molecular basis for the nutritional improvement of sweet corn. In this article, the progress in researches on sweet corn quality at home and abroad（including the genetic basis of sweet corn, vitamin E content, pericarp thickness, zinc content, zeaxanthin and protein content）were reviewed, and the direction of genetic improvement of sweet corn was discussed to provide a theoretical basis for the improvement of sweet corn quality and
breeding of high-quality varieties. |
|
View Full Text
View/Add Comment Download reader |
|
|
|
