PGA

Pisum Genetics Association PISUM GENETICS
The Pisum NewsLetter till 1990


            
Volume 29, 1997              
Published by PGA since 1969

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Cover. Flowers of the narrow standard mutant (left) and a normal flower (right) (see Berdnikov et al., pages 42-43). This mutation also reduces the width of the leaflets and stipules and is possibly allelic with lath. Like lath, the new mutant is completely female sterile. In both mutants the carpel is split open at the dorsal suture with the ovules exposed. In contrast to lath, the new mutant has normal male fertility. It offers several uses. In particular, it may be useful for work in plant development as it adds to the interesting group of mutations that influence both leaf and flower development.

TABLE OF CONTENTS

           

Preface ............................................................................................................................................i

Research Papers

Inheritance and allelism tests on six further branching mutants in pea.

New ramosus mutants at loci Rms1, Rms3 and Rms4 resulting from the
mutation breeding program at Versailles.

Epicuticular wax phenotype of the wel mutation and its effect on pea aphid
populations in the greenhouse and in the field.

Mapping of the py (precocious yellowing) locus in linkage group V.

The calf (cabbage leaf) locus is in linkage group II.

Location of the fun1 gene in linkage group II.

A new homeotic gene, biv, affects flower and inflorescence structures,
and displays linkage with d.

New genes located on the d linkage segment: brac and wlo2.

Genetic instability in the histone H1 locus of pea (Pisum sativum L.).

Linkage relationships of loci d, Pur and Astr.

A probable codominant allele of the locus bt with a striking effect on the pod.

The a2 gene is in linkage group III.

A new allele at the locus nod4.

A lathyroides-phenotype mutation affecting both foliage and flower structures.

New alleles at the am1 and red loci on linkage group IA.

Gene symbols

Gene symbols Ц a time for change.

Death

John D Atkin, 1923-1996........................................................................................................48


Pisum Genetics Volume 29 (1997)
ISSN 1320-2510
Editor: I.C. Murfet; Associate Editor: N.F. Weeden
Published by the Pisum Genetics Association.
Printed at the University of Tasmania, Hobart, Australia.