Effects of divergent selection on correlations between morphological traits in white clover (Trifolium repens L.)

Rosemary Collins; Michael Terence Abberton; T. P. T. Michaelson-Yeates; Athole Marshall

doi:10.1023/A:1018341820861

Effects of divergent selection on correlations between morphological traits in white clover (Trifolium repens L.)

Rosemary Collins, Michael Terence Abberton, T. P. T. Michaelson-Yeates, Athole Marshall

Department of Life Sciences

Institute of Grassland and Environmental Research

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The effects of two generations of divergent selection for stolon diameter and stolon amount on the pattern of phenotypic correlations between important agronomic traits in white clover (Trifolium repens L.) were studied. The effects of selection were: the proportions of the variances of traits under direct selection were considerably lower within selection lines than overall and this was associated with a loss of correlation between traits. Unselected traits showed higher proportions of variances remaining within the selection lines and shifts from non-significant to significant correlations from the plants overall to selection lines. The significance of these results and their relevance to strategies of germplasm improvement is discussed.

Original language	English
Pages (from-to)	301-305
Number of pages	5
Journal	Euphytica
Volume	101
Issue number	3
DOIs	https://doi.org/10.1023/A:1018341820861
Publication status	Published - Jun 1998

Keywords

Correlations
Divergent selection
Trifolium repens
White clover

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title = "Effects of divergent selection on correlations between morphological traits in white clover (Trifolium repens L.)",

abstract = "The effects of two generations of divergent selection for stolon diameter and stolon amount on the pattern of phenotypic correlations between important agronomic traits in white clover (Trifolium repens L.) were studied. The effects of selection were: the proportions of the variances of traits under direct selection were considerably lower within selection lines than overall and this was associated with a loss of correlation between traits. Unselected traits showed higher proportions of variances remaining within the selection lines and shifts from non-significant to significant correlations from the plants overall to selection lines. The significance of these results and their relevance to strategies of germplasm improvement is discussed.",

keywords = "Correlations, Divergent selection, Trifolium repens, White clover",

author = "Rosemary Collins and Abberton, {Michael Terence} and Michaelson-Yeates, {T. P. T.} and Athole Marshall",

note = "Funding Information: The critical reading of this manuscript by Dr. Mervyn Humphreys is greatly appreciated. The authors thank Simon Mee and Elizabeth Evans for technical assistance. The financial support of MAFF and the BBSRC is gratefully acknowledged.",

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AU - Collins, Rosemary

AU - Abberton, Michael Terence

AU - Michaelson-Yeates, T. P. T.

AU - Marshall, Athole

N1 - Funding Information: The critical reading of this manuscript by Dr. Mervyn Humphreys is greatly appreciated. The authors thank Simon Mee and Elizabeth Evans for technical assistance. The financial support of MAFF and the BBSRC is gratefully acknowledged.

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N2 - The effects of two generations of divergent selection for stolon diameter and stolon amount on the pattern of phenotypic correlations between important agronomic traits in white clover (Trifolium repens L.) were studied. The effects of selection were: the proportions of the variances of traits under direct selection were considerably lower within selection lines than overall and this was associated with a loss of correlation between traits. Unselected traits showed higher proportions of variances remaining within the selection lines and shifts from non-significant to significant correlations from the plants overall to selection lines. The significance of these results and their relevance to strategies of germplasm improvement is discussed.

AB - The effects of two generations of divergent selection for stolon diameter and stolon amount on the pattern of phenotypic correlations between important agronomic traits in white clover (Trifolium repens L.) were studied. The effects of selection were: the proportions of the variances of traits under direct selection were considerably lower within selection lines than overall and this was associated with a loss of correlation between traits. Unselected traits showed higher proportions of variances remaining within the selection lines and shifts from non-significant to significant correlations from the plants overall to selection lines. The significance of these results and their relevance to strategies of germplasm improvement is discussed.

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Effects of divergent selection on correlations between morphological traits in white clover (Trifolium repens L.)

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Keywords

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