Abstract
A method for constructing core-germplasm of Rosa rugosa in China based on molecular marker data was probed and the optimum core germplasm was established. Studies were initiated to analyze the genetic diversity of 120 rugged roses from 6 different Chinese source populations based on CDDP marker, and a preliminary construction of the core collection was established using stepwise UPGMA clustering sampling method. The 26 core collection resources of R. rugosa collections in China have 20% germplasm samples of initial collection, the retention ratio of polymorphic loci, effective number of alleles (Ne), Nei’s genetic diversity (H) and Shannon information index (I) were respectively 97.52%, 104.16%, 108.38% and 106.18%. The results of t-test showed that no significant difference was found in genetic diversity indexes between the core collection and the original collection. These results also demonstrated that the core collection could stand for original collection excellently. The results show that CDDP molecular technology can be successfully applied to the construction of core germplasm resources of rugged roses.
Highlights
Rosa rugosa, a deciduous shrub of the genus Rosa, has prickly stems, pinnately compound leaves, and variously colored, often fragrant flowers
The results show that CDDP molecular technology can be successfully applied to the construction of core germplasm resources of rugged roses
This suggests that rugged roses are rich in genetic diversity
Summary
A deciduous shrub of the genus Rosa, has prickly stems, pinnately compound leaves, and variously colored, often fragrant flowers. The rugged rose is a deciduous shrub native to northeastern China and adjacent areas of North Korea, Japan and eastern Russia [1] [2]. As R. rugosa is harder than most cultivated roses, its germplasm is an important resource for rose cultivation. This species is important ecologically, as it can grow on sandy substrates and protect delicate coastal areas from erosion. In order to protect endemic populations of this ecologically important plant in China better, it is necessary to have a deep understanding of genetic variation and establish a core collection among various rugged rose populations. The aim of this study is to establish core germplasm resources of rugged rose with CDDP molecular marker technology
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
