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Regular segregation of four recessive marker genes among maternal haploids in maize
Author(s) -
Chalyk S. T.,
Chebotar O. D.
Publication year - 2000
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1046/j.1439-0523.2000.00486.x
Subject(s) - biology , endosperm , ploidy , hybrid , population , genetics , inbred strain , gene , zea mays , doubled haploidy , botany , agronomy , demography , sociology
The objective of the study was to investigate whether a population of maternal haploid plants represents a random gametic array. Four inbred lines of maize (A619, MK01, 092 and 19‐3‐3) were used in the present study. These were crossed with line TO carrying four recessive genes: brown midrib ( bm2 ), liguleless ( Ig1 ), white endosperm ( g1 ) and golden plant ( g1 ). Maternal haploids were produced from the F 1 hybrids, using a haploid‐inducing pollinator line. Segregation of haploids for the marker genes was estimated under field conditions. The observed segregation data agreed with the expected 1:1 ratio. It is concluded that no segregation distortion occurred during the production of maternal haploids.