A Comprehensive Evaluation Method for Drought Resistance of Camellia oleifera Based on Multi-Dimensional Indicators and Its Application

By using a multi-dimensional index comprehensive evaluation method and transcriptome comparison technology, the problems of multi-variety comparison and molecular mechanism analysis in the study of drought resistance of Camellia oleifera were solved, realizing the scientific evaluation of drought resistance of Camellia oleifera and improving breeding efficiency, and screening out key drought-resistant genes for molecular breeding.

CN121725875BActive Publication Date: 2026-05-26JIANGXI AGRICULTURAL UNIVERSITY +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI AGRICULTURAL UNIVERSITY
Filing Date
2026-02-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Current research on drought resistance in Camellia oleifera is mostly limited to a single physiological level, lacking comparisons among multiple varieties and in-depth analysis of molecular mechanisms, thus failing to provide efficient and accurate molecular markers and gene resources for stress-resistant breeding of Camellia oleifera.

Method used

A multi-dimensional comprehensive evaluation method was adopted, including 27 indicators such as growth morphology, physiological metabolism and photosynthetic characteristics. By combining membership function analysis and principal component analysis, 19 key indicators were screened out, drought resistance coefficient and comprehensive evaluation value were calculated, and key drought resistance genes were screened by transcriptome comparison and applied to the molecular breeding of Camellia oleifera.

Benefits of technology

This approach enables a scientific and reliable evaluation of the drought resistance of Camellia oleifera, allows for the rapid screening of drought-resistant and sensitive varieties, improves breeding efficiency, and identifies key drought-resistant genes for molecular breeding, thereby enhancing the accuracy and efficiency of breeding.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121725875B_ABST
    Figure CN121725875B_ABST
Patent Text Reader

Abstract

This invention discloses a comprehensive evaluation method for drought resistance of Camellia oleifera based on multi-dimensional indicators and its application, relating to the field of plant stress resistance breeding technology. The method includes: selecting test Camellia oleifera materials; subjecting the test materials to drought stress treatment; measuring 27 indicators of the test materials; selecting 19 key indicators using membership function analysis combined with principal component analysis, calculating membership function values ​​and weight coefficients; calculating drought resistance coefficients; calculating comprehensive drought resistance evaluation values ​​and ranking them according to the comprehensive evaluation values; selecting drought-resistant and sensitive varieties based on the ranking, and screening for key drought-resistant genes through transcriptome comparison analysis. This invention constructs multi-dimensional indicators and screens key indicators from them, ensuring the objectivity of the evaluation results. Furthermore, this method can quickly screen for typical drought-resistant and sensitive varieties from drought resistance ranking, facilitating the screening of key drought-resistant genes, which can then be applied to subsequent molecular breeding of Camellia oleifera, showing promising application prospects.
Need to check novelty before this filing date? Find Prior Art