Incompatibility in angiosperms

Nettancourt, D. de

doi:10.1007/s004970050087

Cited by 346 publications

(293 citation statements)

References 117 publications

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“…Only the gametophytic system will be discussed, since the sporophytic system does not apply to potatoes. For further information, refer to the recent reviews by Eijlander (1998), Leidl & Anderson (1993), Mutschler & Leidl (1994) and de Nettancourt (1997).…”

Section: Stylar Barriersmentioning

confidence: 98%

The reproductive biology of the potato and its implication for breeding

HannemanJr

1999

Potato Res

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Horticulture, University of Wisconsin-Madison, a mentor, friend and colleague, in recognition of the enormous contributions he has made to this area and for his enthusiasm for and stimulation of others to an awareness of the importance of its application to plant improvement.Additional keywords: 2n gametes, synaptic mutants, stylar barriers, Endosperm Balance Number, EBN, interspecific hybridization, introgression, imprinting, Solarium spp. SummaryHaploidy, 2n gametes, synaptic mutants, stylar barriers, endosperm barriers. Endosperm Balance Number (EBN) and its relationship to 2n gametes, stylar barriers and disomic genetics are a part of the reproductive biology of potato. Also all are tools for isolation and preservation of a species identity. Haploidy and 2n gametes allow for interploidy gene transfer. "Parallel spindles and synaptic mutants permit the transfer of entire parental genomes intact and are powerful tools in potato breeding. Stylar barriers provide a mechanism for interspecific isolation via unilateral incompatibility. Incongruity has also been invoked. Endosperm barriers have been discussed in terms of EBN which requires a 2 maternal:l paternal ratio in the endosperm for successful seed development. Genetic models suggesting three unlinked genes in a threshold-like system and a two gene system have been proposed. A relationship may exist between EBN and stylar barriers. The use and manipulation of 2n gametes, stylar barriers and EBN have been used effectively in germplasm transfer from species to cultivated potato.

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Section: Stylar Barriersmentioning

confidence: 98%

The reproductive biology of the potato and its implication for breeding

HannemanJr

1999

Potato Res

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“…SI is a genetic mechanism that allows flowering plants to prevent self-fertilization, thereby maintaining a high degree of heterozygosity [10]. The gametophytic SI mechanism in grasses is controlled by a two loci, S and Z (Lundqvist [59]).…”

Section: Biological Mechanisms For Effective Hybrid Seed Productionmentioning

confidence: 99%

“…Both of our target species are characterized by a highly effective self-incompatibility (SI) system which promotes cross-pollination, thereby maintaining a high level of heterozygosity [10]. Such allogamous species are usually improved as population or synthetic varieties, which exploit heterosis only partially.…”

Section: Introductionmentioning

confidence: 99%

Prospects for Hybrid Breeding in Bioenergy Grasses

et al. 2011

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Biofuels obtained from biomass have the potential to replace a substantial fraction of petroleum-based hydrocarbons that contribute to carbon emissions and are limited in supply. With the ultimate goal to maximize biomass yield for biofuel production, this review aims to evaluate prospects of different hybrid breeding schemes to optimally exploit heterosis for biomass yield in perennial ryegrass (Lolium perenne L.) and switchgrass (Panicum virgatum), two perennial model grass species for bioenergy production. Starting with a careful evaluation of current population and synthetic breeding methods, we address crucial topics to implement hybrid breeding, such as the availability and development of heterotic groups, as well as biological mechanisms for hybridization control such as self-incompatibility (SI) and male sterility (MS). Finally, we present potential hybrid breeding schemes based on SI and MS for the two bioenergy grass species, and discuss how molecular tools and synteny can be used to transfer relevant information for genes controlling these biological mechanisms across grass species.

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“…A few short review articles on this subject, have been published recently (de Nettancourt, 1997;Nasrallah,1997;Suzuki et al, 1997d;Charlesworth and Awadalla, 1998;McCubbin and Kao, 1999;Kusaba and Nishio, 1999). These works promote a general understanding of this field.…”

Section: Introductionmentioning

confidence: 99%

Molecular Biology of Self-incompatibility in Brassica Species.

Watanabe

Suzuki

Hatakeyama

et al. 1999

Plant Biotechnology

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Many angiosperm plants express self-incompatibility (SI), through which they can recognize selfpollen and restrict fertilization to non-self-pollen. In species of Brassica, SI is sporophytically expressed, regulated by a single locus, S, with multiple alleles. Two stigma-specific genes, SLG and SRK, both of which locate at the S locus, are believed to play a role in the recognition reaction on the stigma side. Reviewed here are findings about SLG and SRK genes, the molecular characterization of Smultigene family, the genomic structure of S locus, and some aspects on signal transfer by the proteins encoded by these genes.

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Incompatibility in angiosperms

Cited by 346 publications

References 117 publications

The reproductive biology of the potato and its implication for breeding

The reproductive biology of the potato and its implication for breeding

Prospects for Hybrid Breeding in Bioenergy Grasses

Molecular Biology of Self-incompatibility in Brassica Species.

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