STUDIES ON THE TOLERANCE TO SULFUR-DIOXIDE OF GRASS POPULATIONS IN POLLUTED AREAS .6. THE GENETIC NATURE OF TOLERANCE IN LOLIUM-PERENNE L

被引：5

作者：

WILSON, GB ^{[1
]}

BELL, JNB ^{[1
]}

机构：

[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT PURE & APPL BIOL,SILWOOD PK,ASCOT SL5 7PY,BERKS,ENGLAND

来源：

NEW PHYTOLOGIST | 1990年 / 116卷 / 02期

关键词：

genetics; half‐diallel; Lolium perenne; SO[!sub]2[!/sub] tolerance;

D O I：

10.1111/j.1469-8137.1990.tb04719.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Clones of Lolium perenne L., chosen as sensitive or tolerant to sulphur dioxide (SO2) injury, were employed in a half‐dialled crossing programme to carry out an analysis of the genetic basis of tolerance to acute SO2 concentrations. Their progeny were fumigated with SO2 and the percentage injury on the foliage scored and subjected to an analysis of variance designed to test an additive dominance model. The genetic analysis indicated that dominance was towards SO2 susceptibility. Further analysis of the relationship between variance and covariance of members of the same parental array supported this finding and suggested that only a few genes were involved. The results show clearly that the relative sensitivity of L. perenne to acute SO2 concentrations is heritable, with significant additive and non‐additive components. A comparison with the very limited number of other studies on the genetic basis of SO2 tolerance, suggests that it is highly variable between species. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：313 / 317

页数：5

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