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Matromorphy in Pisum sativum L.

D S Virk1, A K Gupta

  • 1Department of Plant Breeding, Punjab Agricultural University, Ludhiana-141 004, Punjab, India.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|November 22, 2013
PubMed
Summary

Matromorph seed development in peas (Pisum sativum L.) offers a rapid method for creating pure breeding lines. This technique induces maternal seeds, potentially simplifying plant breeding by producing homozygous stocks efficiently.

Area of Science:

  • Plant genetics
  • Breeding technology
  • Seed development

Background:

  • Developing pure breeding lines is crucial for plant genetics and breeding.
  • Traditional methods for achieving homozygosity can be time-consuming.
  • Matromorphy, or maternal seed development, presents a potential shortcut.

Purpose of the Study:

  • To investigate the feasibility of inducing matromorphy in Pisum sativum L.
  • To assess the efficiency of matromorphy for producing homozygous lines.
  • To explore alternative breeding tools for plant improvement.

Main Methods:

  • Pollination of maternal pea lines (homozygous recessive or heterozygous dominant markers) with Lathyrus odoratus and Pisum sativum L.
  • Induction of matromorphy using prickle pollination, irradiated pollen, and IAA treatment.

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  • Evaluation of M1 matromorphs and genetic assessment of M2 generation for homozygosity.

    • Main Results:

    • Successful induction of matromorphy varied with treatments, showing pod set rates from 0% to 28%.
    • Promising matromorphs were identified and studied for genetic homozygosity.
    • Mechanisms of matromorphic origin were discussed, supporting its induction in peas.

    Conclusions:

    • Matromorph seed development is a viable method for rapidly producing homozygous stocks in peas.
    • This technique offers an alternative to recurrent backcrossing in plant breeding.
    • Recovery of maternal and paternal markers suggests broad applicability in breeding programs.