Self-incompatibility systems in angiosperms

Bateman, A. J.

doi:10.1038/hdy.1952.40

Cited by 314 publications

(223 citation statements)

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“…The models presented in this paper are part of a larger class of models which are called "incompatibility" models and which were studied by Fisher (1941), Bateman (1952), Finney (1952, Ewens (1964), Cannings (1968, Karlin and Feldman (1968a, b), and Falk and Li (1969). Scudo (1964,1967) has presented models of mating systems which are equivalent to some of ours.…”

Section: Tun Modelsmentioning

confidence: 99%

Changes in the heterogametic mechanism of sex determination

1977

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SUMMARYThis paper attempts to explain how the different hetcrogametic mechanisms of sex determination, such as male and female heterogamety, can arise from a single ancestor. We study this problem by first building and analysing some models and then comparing the models to relevant data from animals. Based on these comparisons, the models appear to be useful for understanding how sex determining mechanisms evolve. Some results of the models include:(1) A mutant sex determiner invading a population of male or female heterogamety creates the potential for the evolution of a new heterogametic sex determining mechanism.(2) Certain mutants will lead to a new system of male heterogamety whereas others will lead to a new system of female heterogamety.(3) These changes take place through an intermediate population charactensed by multigenic sex determination. In some cases the multigenic mechanism is stable and will not revert to male or female heterogamety. The success of the invading mutant depends upon both (i) the relative viabilities of the different genotypes, and (ii) the segregation ratio of the X and Y in males; the population primary sex ratio is otherwise maintained at 1/2. (4) The models show how the different systems of genie balance arise and how sex determiners can become inherited autosomally.

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Section: Tun Modelsmentioning

confidence: 99%

Changes in the heterogametic mechanism of sex determination

1977

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Section: Introductionmentioning

confidence: 99%

“…In a survey of 59 taxa in the subtribe Brassicineae of the tribe Brassiceae (which includes Brassica and Raphanus ), 50 taxa were self-incompatible (Takahata and Hinata, 1980). In all cases analyzed, SI has been shown to be controlled sporophytically by a single S (sterility) locus, with multiple alleles or variants and complex dominance relationships between alleles (Bateman, 1954(Bateman, , 1955Thompson and Taylor, 1966): in self-incompatible plants, pollen will not develop on a stigma that expresses the same S alleles as the pollen parent.Molecular analysis of the Brassica S locus region has shown that this mendelian locus is a gene complex consisting of distinct stigma-expressed and anther-expressed genes that determine SI specificity in stigma and pollen, respectively (reviewed in Nasrallah, 2000). The SRK (for S locus receptor kinase) gene (Stein et al, 1991) encodes a plasma membrane-spanning receptor serine/threonine kinase specific to the stigma epidermis (Stein et al, 1996) and is the determinant of SI specificity in the stigma (Takasaki et al, 2000).…”

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“…Species in this family have been grouped into 19 tribes on the basis of morphological criteria (Schultz, 1936), and SI has been described in all tribes analyzed to date. When Bateman (1955) surveyed 182 species distributed in 11 tribes, he found that approximately half of these species included selfincompatible accessions. In a survey of 59 taxa in the subtribe Brassicineae of the tribe Brassiceae (which includes Brassica and Raphanus ), 50 taxa were self-incompatible (Takahata and Hinata, 1980).…”

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Self-Incompatibility in the Genus Arabidopsis: Characterization of the S Locus in the Outcrossing A. lyrata and Its Autogamous Relative A. thaliana

Kusaba¹,

Dwyer²,

Hendershot³

et al. 2001

The Plant Cell

131

282

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As a starting point for a phylogenetic study of self-incompatibility (SI) in crucifers and to elucidate the genetic basis of transitions between outcrossing and self-fertilizing mating systems in this family, we investigated the SI system of Arabidopsis lyrata . A. lyrata is an outcrossing close relative of the self-fertile A. thaliana and is thought to have diverged from A. thaliana ‫ف‬ 5 million years ago and from Brassica spp 15 to 20 million years ago. Analysis of two S (sterility) locus haplotypes demonstrates that the A. lyrata S locus contains tightly linked orthologs of the S locus receptor kinase ( SRK ) gene and the S locus cysteine-rich protein ( SCR ) gene, which are the determinants of SI specificity in stigma and pollen, respectively, but lacks an S locus glycoprotein gene. As described previously in Brassica , the S haplotypes of A. lyrata differ by the rearranged order of their genes and by their variable physical sizes. Comparative mapping of the A. lyrata and Brassica S loci indicates that the S locus of crucifers is a dynamic locus that has undergone several duplication events since the Arabidopsis-Brassica split and was translocated as a unit between two distant chromosomal locations during diversification of the two taxa. Furthermore, comparative analysis of the S locus region of A. lyrata and its homeolog in self-fertile A. thaliana identified orthologs of the SRK and SCR genes and demonstrated that self-compatibility in this species is associated with inactivation of SI specificity genes. INTRODUCTIONSelf-incompatibility (SI) is the major outcrossing mechanism in the family Brassicaceae (de Nettancourt, 1977). Species in this family have been grouped into 19 tribes on the basis of morphological criteria (Schultz, 1936), and SI has been described in all tribes analyzed to date. When Bateman (1955) surveyed 182 species distributed in 11 tribes, he found that approximately half of these species included selfincompatible accessions. In a survey of 59 taxa in the subtribe Brassicineae of the tribe Brassiceae (which includes Brassica and Raphanus ), 50 taxa were self-incompatible (Takahata and Hinata, 1980). In all cases analyzed, SI has been shown to be controlled sporophytically by a single S (sterility) locus, with multiple alleles or variants and complex dominance relationships between alleles (Bateman, 1954(Bateman, , 1955Thompson and Taylor, 1966): in self-incompatible plants, pollen will not develop on a stigma that expresses the same S alleles as the pollen parent.Molecular analysis of the Brassica S locus region has shown that this mendelian locus is a gene complex consisting of distinct stigma-expressed and anther-expressed genes that determine SI specificity in stigma and pollen, respectively (reviewed in Nasrallah, 2000). The SRK (for S locus receptor kinase) gene (Stein et al., 1991) encodes a plasma membrane-spanning receptor serine/threonine kinase specific to the stigma epidermis (Stein et al., 1996) and is the determinant of SI specificity in the stigma (Takasaki et al., 2000). ...

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“…EVERAL ways are now known in which the barrier between pollina-S tion and fertilization in angiosperms is raised by the self-incompatibility genes (BATEMAN, 1952;LEWIS, 1954;PANDEY, 1957). Since the task of establishing the details of an incompatibility system is laborious and time-consuming, the number of well analysed species is low.…”

Section: R Introductionmentioning

confidence: 99%

Self-Incompatibility in Festuca Pratensis Huds

Lundqvist

2009

Hereditas

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Self-incompatibility systems in angiosperms

Cited by 314 publications

References 24 publications

Changes in the heterogametic mechanism of sex determination

Changes in the heterogametic mechanism of sex determination

Self-Incompatibility in the Genus Arabidopsis: Characterization of the S Locus in the Outcrossing A. lyrata and Its Autogamous Relative A. thaliana

Self-Incompatibility in Festuca Pratensis Huds

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