Pisum Genetics Association PISUM GENETICS
The Pisum NewsLetter till 1990

 

Published by PGA since 1969

Volume 22, 1990

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COVER Description

TABLE OF CONTENTS

PNL 

Volume 22

1990

CONTENTS AND COVER

 

 

TABLE OF CONTENTS

PAGE

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PREFACE.

 1

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RESEARCH REPORTS

 

 

 

Germination of Vavilovia formosa (Stev.) Davis in the laboratory. S.R. Cooper and Caroline A. Cadger

 5

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Internode length in Pisum. Genotypes la crys lka and la crys lkb and the phenotype semi-erectoides. R.E. Cramp and J.B. Reid

 6

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Effect of heat shock on the expression of disease resistance response genes in pea. Catherine H. Daniels and Lee A. Hadwiger.

 12

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The mode of inheritance of somaclonal variations in pea dealing with flowering behaviour. T.A. Ezhova, A.M. Bagrova and S.A. Gostimski

 15

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Agronomic performance and background effects of the afila-tendrilled acacia pea foliage type: evaluation on wire trellises. I.L. Goldman and E.T. Gritton.

 18

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Regeneration of pea genotypes following exposure to sub-lethal high temperatures. W. Gottschalk

 21

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Shortened internode length below the node of flower initiation in pea. F.N. Green.

 22

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Orange pod phenotype found in an accession of Pisum fulvum Sibth. & Sm. originating from Syria. F.N. Green.

 25

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Evidence for a new rugosus locus. C.L. Hedley, D.A. Jones, T.L. Wang, M.J. Ambrose, A.M. Smith, T.H.N. Ellis, L. Turner, P. Matthews, M. Bhattacharyya, W. Harwood, I.D. Bedford and F.N. Green.

 26

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Variations in pod rehydration and permiability in three lines of Pisum sativum L. Simon N. Miles, David Price, Maria E. Donkin and Iain Swadling.

 29

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Water congestion damage in pea: reduced susceptibility in the small stipule mutant, st. Ian C. Murfet

 32

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The gi locus shows linkage with gp, r and tl. Ian C. Murfet.

 38

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Evidence of maternal transmission of plastid DNA in the garden pea. N.O. Polans, J.L. Corriveau and A.W. Coleman

 41

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Evidence of a cluster of linked genes for resistance to pea seedborn mosaic virus and clover yellow vein virus on chromosome 6. R. Provvidenti and F.J. Muehlbauer

 43

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Genetic impact of the pea seedborne mosaic virus eradication program on the U.S.A. national Pisum collection. B.E. Recchio-Demmin, J.R. McFerson and S. Kresovich

 46

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Internode length in Pisum. The genotype of Gottschalk's mutant 84B. J.B. Reid.

 48

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Internode length in Pisum. The interaction of genes lv and lk.
J.B. Reid

 50

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Mapping of a legumin subunit gene on pea chromosome 7.
O.G. Smirnova

 52

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Purified guard cell protoplasts from the leaf epidermis of the argenteum mutant of Pisum sativum. S. Smith, J.D.B. Weyers, P.C. Jewer and H-O. Hgland.

 55

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Two new anthocyanin genes in the D segment of chromosome 1. W.K. Swiecicki

 59

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Is the locus for the gene het on chromosome 7 or 5? A new look at Lamprecht's linkage groups. W.K. Swiecicki.

 62

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Linkage of a gene conferring toothed leaves. W.K. Swiecicki.

 64

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Locus and allelism tests for the pet and apu mutants. W.K. Swiecicki

 66

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Locus for the gene def (development funiculus). W.K. Swiecicki and B. Wolko

 67

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A leghemoglobin gene cluster is located near D on chromosome 1 N.F. Weeden.

 69

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Additional markers for chromosome 6. B. Wolko and N.F. Weeden.

 71

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Two new isozyme loci on chromosome 2. B. Wolko and N.F. Weeden

 75

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REVIEW

 

 

 

Flowering genes in pea and their use in breeding. Ian С. Murfet.

 78

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FEATURES

 

 

 

The John Innes pea program for the '90s. D.R. Davies

 87

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The European Community Pea Group. C.L. Hedley.

 88

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The Norwich Legume Group (NORLEG). C.L. Hedley

 89

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Field pea breeding in Poland. W.K. Swiecicki and K. Leraczyk

 92

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PISUM GERMPLASM

 

 

 

European Pisum database. P. Matthews and W. Swiecicki.

 96

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Collection of Pisum germplasm in Turkey in 1985 and 1989. F.J. Muehlbauer, W.J. Kaiser, Ziya Kutlu, and C.R. Sperling.

 97

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pGene: a Pisum gene database. P.J. Winfield 

 99

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BIBLIOGRAPHY

 

 

 

The use of pea to study the plant genetics of symbiotic nitrogen fixation. T.A. LaRue.

 101

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ERRATA

 104

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COVER

Mendel (1866) studied the inheritance of flowering behaviour but found the trait not amenable to clear analysis. It was not until 1915 that Hoshino identified a major flowering locus with some surety when he reported a gene for late flowering linked to a basic gene for anthocyanin production. White (1917) subsequently designated this locus Lf to avoid confusion over symbol duplication (Lf = Hoshino's A). Two further alleles, lfa and Lfd, were later identified by Murfet (1975). Reading left to right, the 49-day-old plants shown in the cover photograph are of Hobart lines 69 (lfa), 59 (lf), 65 (Lf) and 89 (Lfd). The plants commenced flowering at nodes 6, 9, 19 and 21, respectively. All lines are dwarf (le) and exhibit day neutral flowering behaviour (sn). Line 69 has a tendency to open two or more flowers on the one day, a characteristic of plants with allele lfa. Line 59 is a selection from the early market cultivar Massey. Line 65 was selected to occupy the upper end of the flowering node range for Lf sn plants which more commonly commence flowering in the range of nodes 12-17. Day neutral lines generally do not produce secondary stems from basal nodes but late day neutral types do have a strong tendency to produce aerial laterals and this trait is clearly apparent in lines 65 and 89. Line 89 also shows two other traits characteristic of Lfd sn plants, a reduction in internode length prior to the onset of flowering, and the hastening of flower bud development relative to leaf development so that the flowers open while still within the apical bud. References and further details are given in the review of pea flowering genes on pages 78-86.

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