How Many Different Kinds of Meiotic Abnormalities Could Be Found in a Unique Endogamous Maize Plant?

Access this Article

Search this Article

Author(s)

Abstract

Verification of the different kinds of meiotic abnormalities in a unique endogamous maize plant was undertaken by analyzing 53324 cells, including meiocytes and meiotic products, scored among 433 male flowers. A total of 6456 cells (12.11%) were affected by certain kind of meiotic abnormality that could impair, in different ways, pollen viability. Abnormalities were related to chromosome segregation, absence of cytokinesis, cytomixis, cell fusion, irregular cell shape, chromosome bridges, and genomic separation. Abnormalities compromised meiotic products and a high frequency of abnormal microspores was produced. High frequency of different kinds of meiotic abnormalities in a unique plant may be explained by gene segregation for meiosis control during selfing. The influence of meiotic abnormalities in the combining ability of inbred lines is discussed.

Journal

  • CYTOLOGIA

    CYTOLOGIA 67(2), 169-176, 2002-06-25

    Japan Mendel Society, International Society of Cytology

References:  28

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008840575
  • NII NACSIS-CAT ID (NCID)
    AA00622764
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00114545
  • Data Source
    CJP  CJPref  J-STAGE 
Page Top