Selection of female parents with high fertility and high combining abilities for cross-breeding Populus tomentosa

To select maternal parents with high fertility and high combining ability during cross breeding of Populus tomentosa Carr. , the ploidy level of 75 female clones was determined using flow cytometry. In addition, genetic variations and phenotypic correlations of seed traits and early growth traits, a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of forestry research 2019-04, Vol.30 (2), p.445-450
Main Authors: Bai, Feng-ying, Kang, Ning, Zhang, Ping-dong, Kang, Xiang-yang
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Breeding
Cloning
Combining ability
Cross-breeding
Fertility
Flow cytometry
Forestry
Genetic diversity
Life Sciences
Original Paper
Parents
Phenotypic variations
Ploidy
Populus tomentosa
Seedlings
Weight
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:To select maternal parents with high fertility and high combining ability during cross breeding of Populus tomentosa Carr. , the ploidy level of 75 female clones was determined using flow cytometry. In addition, genetic variations and phenotypic correlations of seed traits and early growth traits, as well as the general combining ability (GCA) for seedling height (SH) and basal diameter (BD) of all diploid half-sib families were examined. A total of 26 natural triploid clones were identified. For all diploid families, family effects were significant for inflorescence length (IL), thousand kernel weight (TKW), seedling emergence rate (SER), and for SH and BD. There was a positive correlation between TKW and other traits, excluding IL. The seed-bearing coefficient (NS × SER) ranged from zero to 32.4%. Clones 3-10-2, 2-8, 3119, 3206, and 3-10-1 had the best performance of the GCA for SH and BD. Based on the fertility and GCA for SH and BD, clone 3-10-2 and clone 3119 could be used as female parents for controlled cross-breeding of P. tomentosa .
ISSN:1007-662X
1993-0607
DOI:10.1007/s11676-018-0684-8