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Heterosis for biomass yield and quality traits in a reciprocal cross population between Miscanthus sinensis and Miscanthus lutarioriparius.
- Source :
-
Industrial Crops & Products . Dec2023, Vol. 205, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
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Abstract
- Heterosis plays an important role in plant breeding and has been widely used in the production of a variety of food crops. However, cross-breeding is particularly important in the breeding of new varieties of the energy crop miscanthus due to its characteristics of self-incompatibility and lack of interspecific reproductive isolation. Therefore, in the current study, 30 direct cross hybrids and 150 reciprocal cross hybrids were obtained from a cross between M. sinensis and M. lutarioriparius. These hybrids were significantly different in phenotype and were used for a detailed analysis of heterosis. The mid-parent, over-parent and over-standard heterosis of the hybrids for yield-related agronomic traits were analyzed. The results showed that the hybrids from direct and reciprocal crosses exhibited significant trait segregation and acquired dominant agronomic traits from both parents, showing mid-parent, over-parent and over-standard heterosis. Plant height, tiller number, stem node number, and stem diameter showed maternal inheritance. Principal component analysis was used to construct the linear combination relationship of yield-related agronomic traits. Excellent hybrids were screened against the commercial miscanthus variety Miscanthus × giganteus. These hybrids were superior to their two parents and M. × giganteus in terms of phenotypic yield-related agronomic traits, biomass yield, and quality. These results not only confirmed the feasibility of breeding miscanthus by remote crosses, but also provided a reference for the application, cross-breeding and breeding of new miscanthus varieties. • First systematic analysis of heterosis for yield-related traits in miscanthus. • Significant variation in yield related traits in the hybrid of interspecific crosses of miscanthus. • Confirmed the existence of maternal inheritance of some yield-related traits in miscanthus. • Provided new ideas for breeding new miscanthus varieties through heterosis. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09266690
- Volume :
- 205
- Database :
- Academic Search Index
- Journal :
- Industrial Crops & Products
- Publication Type :
- Academic Journal
- Accession number :
- 173154938
- Full Text :
- https://doi.org/10.1016/j.indcrop.2023.117451