Species hybridization in Trifolium

Evans, Alice M.

doi:10.1007/bf00033789

Cited by 55 publications

(9 citation statements)

References 11 publications

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“…(FARis 1963, 1965EvANS 1976;SMART 1984;BAUNDOIN and MARECHAL 1985;NG and MAREcHAL 1985;NG and APEJI 1986;MITHEN 1987;UTA 1987UTA , 1988UTA , 1989NG 1988).…”

Section: Introductionmentioning

confidence: 99%

Mitotic karyotype analysis in theVignagenus by means of an image analyser

Venora

Saccardo

1993

Caryologia

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“…(FARis 1963, 1965EvANS 1976;SMART 1984;BAUNDOIN and MARECHAL 1985;NG and MAREcHAL 1985;NG and APEJI 1986;MITHEN 1987;UTA 1987UTA , 1988UTA , 1989NG 1988).…”

Section: Introductionmentioning

confidence: 99%

Mitotic karyotype analysis in theVignagenus by means of an image analyser

Venora

Saccardo

1993

Caryologia

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“…2 Interspecific hybridization in Trifolium is uncommon (Evans 1962) and breeding efforts rely largely on artificial methods (Quesenberry & Taylor 1976). However, some species combinations are compatible.…”

Section: Medicago Arabicamentioning

confidence: 99%

“…hybridum (aslike clover) nat. 2 T. repens can hybridize with T. ambiguum, T. hybridum (both locally naturalized) and T. ithsmocarpum (Evans 1962;Caradus & Williams 1995). Hybridization between these species has been achieved through hand pollination, although F 1 hybrid fertilities are unreported.…”

Section: Medicago Arabicamentioning

confidence: 99%

Transgene escape: what potential for crop–wild hybridization?

et al. 2005

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To date, regional surveys assessing the risk of transgene escape from GM crops have focused on records of spontaneous hybridization to infer the likelihood of crop transgene escape. However, reliable observations of spontaneous hybridization are lacking for most floras, particularly outside Europe. Here, we argue that evidence of interspecific reproductive compatibility derived from experimental crosses is an important component of risk assessment, and a useful first step especially where data from field observations are unavailable. We used this approach to assess the potential for transgene escape via hybridization for 123 widely grown temperate crops and their indigenous and naturalized relatives present in the New Zealand flora. We found that 66 crops (54%) are reproductively compatible with at least one other indigenous or naturalized species in the flora. Limited reproductive compatibility with wild relatives was evident for a further 12 crops (10%). Twenty-five crops (20%) were found to be reproductively isolated from all their wild relatives in New Zealand. For the remaining 20 crops (16%), insufficient information was available to determine levels of reproductive compatibility with wild relatives. Our approach may be useful in other regions where spontaneous crop-wild hybridization has yet to be well documented.

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“…Hybridisation of T. arvense with white clover has been attempted (Evans 1962), but only embryos which either become contaminated or which aborted were obtained. Recent developments in embryo culture techniques may make it worthwhile to repeat such attempts.…”

Section: Discussionmentioning

confidence: 99%

Bloat in cattle

Jones

Lyttleton²

1973

New Zealand Journal of Agricultural Research

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The presence of protein precipitants in non-bloating legume pastures is correlated with the presence of flavanols in leaves of these plants. This result is consistent with the precipitants being flavolans (polymeric flavanols). Methods for their detection in pasture plants, a rapid screening test (using vanillin/HCI) to detect flavanols and gel electrophoresis to confirm the presence of flavolans in those plants which contain flavanols, are described.These methods have been applied to the examination of white clover (5000 plants, 70 populations) and red clover (4000 plants, 100 populations.). Flavolans were not found in the leaf blades of any of the white or red clover plants, but were found in medium amounts in white and red clover petals and in trace amounts in the stems and extremities of the petioles of some plants.Forty-two other Trifolium species were also e'xamined for flavolans. T. arvense L. and T. affine L. were the only species that contained flavolans in leaf tissue. The implications of these results are discussed in terms of possibilities for producing bloat-free plants.

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Species hybridization in Trifolium

Cited by 55 publications

References 11 publications

Mitotic karyotype analysis in theVignagenus by means of an image analyser

Mitotic karyotype analysis in theVignagenus by means of an image analyser

Transgene escape: what potential for crop–wild hybridization?

Bloat in cattle

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