Leaf mutants in diploid red clover (Trifolium pratense L.)

Jaranowski, J.; Broda, Z.

doi:10.1007/bf00272686

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…A gene for glabrousness was only known in indica, but not in japonica varieties. The seed production of these genotypes is not negatively influenced (Jaranowski and Broda 1978). Some of them show good yielding properties (Hiraiwa and Tanaka 1979).…”

Section: Leaf Mutants Of Agronomic Interestmentioning

confidence: 99%

Induced Mutations in Plant Breeding

Gottschalk¹,

Wolff²

1983

Monographs on Theoretical and Applied Genetics

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Section: Leaf Mutants Of Agronomic Interestmentioning

confidence: 99%

Induced Mutations in Plant Breeding

Gottschalk¹,

Wolff²

1983

Monographs on Theoretical and Applied Genetics

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“…Because the basal species of Trifolium often have pentafoliolate leaves (Ellison et al, 2006; Zohary and Heller, 1984), it is believed that the genus Trifolium originated from multifoliolate ancestors and that the number of leaflets was reduced during evolutionary time (Eames, 1961; Jaranowski and Broda, 1978; Zohary and Heller, 1984). The presence of a dominant locus that inhibits the expression of multifoliolate leaves, leading to trifoliolate leaves in white clover, supports the premise that leaflet number suppressors in the Fabaceae in general, and Trifolium in particular, resulted in lower leaflet number (Eames, 1961; Zohary and Heller, 1984).…”

Section: Discussionmentioning

confidence: 99%

“…In red clover (T. pratense L.), the multifoliolate trait was fi rst studied by Simon (1962), who determined it was conditioned by homozygous recessive alleles at one of two loci. Also studying red clover, Jaranowski and Broda (1978) determined that the multifoliolate trait was controlled by homozygous recessive alleles at three loci, and Taylor (1982) determined it was a quantitative recessive trait.…”

Section: Researchmentioning

confidence: 99%

Leaf Trait Coloration in White Clover and Molecular Mapping of the Red Midrib and Leaflet Number Traits

et al. 2010

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White clover (Trifolium repens L.) is a highly outcrossing heterozygous allotetraploid species, for which classic inheritance studies have been inconclusive. With the aid of molecular markers, it is now possible to study the genes controlling morphological traits. The objectives of this study were to catalog the leaf marks in white clover and map the location of leaf morphological traits based on cosegregation with molecular markers. A mapping population segregating for eight morphological traits consisting of leaf marks and number of leaflets was developed and phenotyped at two different locations during the summer and winter seasons. A confirmation population, derived by selfing one of the mapping population parents, was produced and phenotyped in one location at two different times of the year. Through the use of previously published simple sequence repeat (SSR) marker maps, linkages between the mapped molecular markers and genes for three different morphological traits was identified. The red midrib and red fleck traits were found to be controlled by two closely linked dominant genes on linkage group (LG) B1. The trifoliolate trait is controlled by at least one gene on LG H1. The identification of molecular markers linked to loci affecting leaf morphology traits resolves conflicting hypotheses on the genetics of these complex traits and has potential for molecular breeding improvement of white clover.

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“…Knight (1969) studied the inheritance of multifoliolate leaves, glabrous leaves, and petiolulate leaflet attachment in crimson clover, T. incarnatum L. and reported that each of the trait to be controlled by a single recessive gene pair as intermediate forms were not observed in segregating population. Jaranowski and Broda (1978) while studying leaf mutants in diploid red clover (T. pratense) reported that the leaf alteration (complexity) is governed by at least three recessive pairs of alleles of additive action. The phenotypic expression of the altered leaves depends simply on the number of recessive alleles.…”

Section: Expression Of Multifoliate Traitmentioning

confidence: 99%

“…One such reference to multifoliolate leaves in white clover (Trifolium repens L.) is in the registration of FL-ML white clover germplasm (Baltensperger et al 1991). Knight (1969) in Trifolium incarnatum and Jaranowski and Broda (1978) in Trifolium pratense also reported multifoliate leaf formation. However, there is no report of developing pure pentafoliate in any Trifloium species.…”

mentioning

confidence: 99%

Multifoliate Leaf Formation in Induced Tetraploids of <i>Trifolium alexandrinum</i> L.

et al. 2015

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SummaryThe Egyptian clover or berseem (Trifolium alexandrinum L.) is widely cultivated as a winter season forage crop in about two million hectare of land in India. It is widely accepted because of its multicut nature, high yield and nutritional value. A plausible approach for increasing yield could be through increasing photosynthetically active leaf area and consequently the biomass. The present investigation deals with induction of polyploidy and evaluation of tetraploids vis-à-vis diploids lines of Egyptian clover for multifoliate leaf formation. Immersing of pre-hydrated seeds, from diploid multifoliate plants, in colchicine followed with seedlings immersed in 0.1 and 0.2% colchicine solution for 24 and 48 h, respectively, was effective in inducing tetraploidy. Distinct characteristic features observed among induced pentafoliate tetraploid plants were presence of serrate leaflet margin, prominent rachis and bold seeds. Leaves were thick, succulent, and hairy with apical notch characterized by presence of pigmentation on the outer margin. The autotetraploids had better expression of pentafoliate trait than in diploid plants.Key words Colchicine, Multifoliate, Pentafoliate, Polyploidy, Tetraploid, T. alexandrinum, Egyptian clover, Fodder.The Egyptian clover or berseem (Trifolium alexandrinum L.) is a diploid species (2n=16) commonly cultivated as a winter annual fodder crop in tropical and subtropical countries. It is cultivated as a winter season forage crop in about two million hectare of land in India. It is widely accepted because of its multicut nature, high yield and nutritional value. In the past, efforts have been made to induce genetic variability through mutation, polyploidization and selection but the results were not very encouraging. A plausible approach for increasing yield could be through increasing photosynthetic area, i.e. leaf area, which will help in increasing the photosynthetically active leaf area and consequently the biomass yield. The number of leaves per plant and leaflets per leaf in the Egyptian clover contribute to higher leaf-stem ratio (Bakheit 1996). Cultivars of Egyptian clover possess trifoliate leaves in general. However, occasional occurrence of multifoliate plants in natural population is reported (Shukla and Malaviya 1986). The frequency of multifoliate plants in the natural population of berseem was 0.004% only. Such multifoliate plants possessed only 1 to 2% multifoliate leaves. Likewise, white clover occasionally produces a leaf with four (or more) leaflets. The genetics underlying this phenomenon has been partly worked out (Tashiro et al. 2010). One such reference to multifoliolate leaves in white clover (Trifolium repens L.) is in the registration of FL-ML white clover germplasm (Baltensperger et al. 1991). Knight (1969) in Trifolium incarnatum and Jaranowski and Broda (1978) in Trifolium pratense also reported multifoliate leaf formation. However, there is no report of developing pure pentafoliate in any

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Leaf mutants in diploid red clover (Trifolium pratense L.)

Cited by 6 publications

References 9 publications

Induced Mutations in Plant Breeding

Induced Mutations in Plant Breeding

Leaf Trait Coloration in White Clover and Molecular Mapping of the Red Midrib and Leaflet Number Traits

Multifoliate Leaf Formation in Induced Tetraploids of <i>Trifolium alexandrinum</i> L.

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