Related Experiment Video
Updated: May 6, 2026

Dissection of Saccharomyces Cerevisiae Asci
Published on: May 19, 2009
Segregation distortion and linkage studies in microspore-derived double haploid lines of Hordeum vulgare L
M Zivy1, P Devaux, J Blaisonneau
1Station of Plant Genetics, CNRS-INRA-UPS, Ferme du Moulon, F-91190, Gif-sur-Yvette, France.
Abstract:
A total of 62 doubled haploid (DH) lines was derived from a cross between tow lines of barley by anther culture. By two-dimensional electrophoresis of seedling proteins, the segregation of 28 loci in the population of DH lines was studied and a linkage map was constructed. The linkage map covered a large part of the length of the genome. A deviation to the 1∶1 segregation expected in the absence of selection was observed for at least one chromosome segment. This might be linked to a gene or group of genes selected because of their involvment in the process of haploid production.
Related Concept Videos
Dihybrid Crosses
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
Law of Segregation
Law of Independent Assortment
Chi-square Analysis
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
Meiosis II
The timing and cell division patterns of meiosis differ between males and females. In male meiosis, the centrosomes are part of the formation of the meiotic spindle. However, in oocytes, including that of humans, Drosophila,...

