The Behavior of the Maize B Chromosome and Centromere

The maize B chromosome is a non-essential chromosome with an accumulation mechanism. The dispensable nature of the B chromosome facilitates many types of genetic studies in maize. Maize lines with B chromosomes have been widely used in studies of centromere functions. Here, we discuss the maize B ch...

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Detalles Bibliográficos
Autores principales: Su, Handong, Liu, Yalin, Liu, Yang, Birchler, James A., Han, Fangpu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Review
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210970/
https://www.ncbi.nlm.nih.gov/pubmed/30275397
http://dx.doi.org/10.3390/genes9100476
Descripción
Sumario:The maize B chromosome is a non-essential chromosome with an accumulation mechanism. The dispensable nature of the B chromosome facilitates many types of genetic studies in maize. Maize lines with B chromosomes have been widely used in studies of centromere functions. Here, we discuss the maize B chromosome alongside the latest progress of B centromere activities, including centromere misdivision, inactivation, reactivation, and de novo centromere formation. The meiotic features of the B centromere, related to mini-chromosomes and the control of the size of the maize centromere, are also discussed.

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