The quantitative relationship between telomeric heterochromatin and secalin synthesis inSecale cerealeL.

✍ Scribed by M. R. L. Owen; E. N. Larter

• Book ID: 104616995
• Publisher: Springer
• Year: 1988
• Tongue: English
• Weight: 408 KB
• Volume: 39
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00037107

✦ Synopsis

The relationship between the amount of prolamine (secalin) synthesized and the amount of telomeric heterochromatin in ten inbred lines of rye (Secale cereale L.) cv . `Self Fertile Spring' was investigated . There was no association between the total amount of secalin synthesized and the amount of telomeric heterochromatin per haploid genome . However, a positive relationship was found between total secalin synthesis and the amount of telomeric heterochromatin on the short arm of chromosome 7 (7RS) . Lines synthesizing high levels of secalin were found to have approximately 60% less telomeric heterochromatin on chromosome arm 7RS than lines synthesizing low levels of secalin . There was no positive relationship between secalin synthesis and the amount of telomeric heterochromatin present on any other telomere .