Evaluation of molecular and phenotypic diversity of Crataegus bretschneideri C. K. Schneid. and related species in China

Crataegus bretschneideri C. K. Schneid. originated in Northeast China, it has remarkable characteristics of cold resistance and early maturity. Due to its unclear taxonomic status, the conservation and utilization of C. bretschneideri have been limited. In this study, the molecular and phenotypic di...

Full description

Saved in:
Bibliographic Details
Published in:Genetic resources and crop evolution 2023, Vol.70 (1), p.221-234
Main Authors: Zhang, Xiao, Sun, Xinyu, Wang, Jian, Xue, Miliao, Sun, Chao, Dong, Wenxuan
Format: Article
Language:English
Subjects:
Agriculture
Biomedical and Life Sciences
Cluster analysis
Cold resistance
Crataegus
Gene pool
Genetic analysis
Genetic diversity
Life Sciences
Low temperature resistance
Phylogeny
Plant Genetics and Genomics
Plant Physiology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Population genetics
Population structure
Research Article
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Crataegus bretschneideri C. K. Schneid. originated in Northeast China, it has remarkable characteristics of cold resistance and early maturity. Due to its unclear taxonomic status, the conservation and utilization of C. bretschneideri have been limited. In this study, the molecular and phenotypic diversity of C. bretschneideri and relative species were systematically assessed. The results showed the high levels of genetic variation in leaf and fruit phenotypic traits in thirty-six Crataegus accessions based on the Shannon–wiener index and principal component analyses. According to the phenotypic cluster analysis, Crataegus accessions were clustered into five main clades. The genetic diversity and population structure of seven Crataegus species were analyzed by thirteen reported and five newly designed SCoT markers. In total, eighteen SCoT markers produced 148 polymorphic bands with 94.87% polymorphic loci. Thirty-six Crataegus accessions were divided into five clades in the phylogenetic tree constructed by SCoT markers. C. bretschneideri accessions were clustered into a single clade which had a closer relationship with C. pinnatifida Bunge accessions. Population structure analyses indicated that there was a mixed gene pool in C. bretschneideri accessions. These findings revealed that C. bretschneideri may be of hybrid origin. Newly designed SCoT markers are practical for genetic diversity analyses of genus Crataegus .
ISSN:0925-9864
1573-5109
DOI:10.1007/s10722-022-01428-0