TY - JOUR

T1 - Retrotransposons and the evolution of genome size in pisum

AU - Ellis, T. H.Noel

AU - Vershinin, Alexander V.

N1 - Funding Information: Funding: T.H.N.E. gratefully acknowledges the support of an Institute Strategic Fellowship from The John Innes Institute and the BBSRC SASSA UPGRADE project (BB/R020604/1). A.V.V. acknowledges the support of the Russian fundamental scientific research program (project 0310-2019-0003). Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2020/12

Y1 - 2020/12

N2 - Here we investigate the plant population genetics of retrotransposon insertion sites in pea to find out whether genetic drift and the neutral theory of molecular evolution can account for their abundance in the pea genome. (1) We asked whether two contrasting types of pea LTR-containing retrotransposons have the frequency and age distributions consistent with the behavior of neutral alleles and whether these parameters can explain the rate of change of genome size in legumes. (2) We used the recently assembled v1a pea genome sequence to obtain data on LTR-LTR divergence from which their age can be estimated. We coupled these data to prior information on the distribution of insertion site alleles. (3) We found that the age and frequency distribution data are consistent with the neutral theory. (4) We concluded that demographic processes are the underlying cause of genome size variation in legumes.

AB - Here we investigate the plant population genetics of retrotransposon insertion sites in pea to find out whether genetic drift and the neutral theory of molecular evolution can account for their abundance in the pea genome. (1) We asked whether two contrasting types of pea LTR-containing retrotransposons have the frequency and age distributions consistent with the behavior of neutral alleles and whether these parameters can explain the rate of change of genome size in legumes. (2) We used the recently assembled v1a pea genome sequence to obtain data on LTR-LTR divergence from which their age can be estimated. We coupled these data to prior information on the distribution of insertion site alleles. (3) We found that the age and frequency distribution data are consistent with the neutral theory. (4) We concluded that demographic processes are the underlying cause of genome size variation in legumes.

KW - Genome size

KW - Legumes

KW - Pea

KW - Retrotransposons

UR - http://www.scopus.com/inward/record.url?scp=85104145917&partnerID=8YFLogxK

UR - https://elibrary.ru/item.asp?id=46775187

U2 - 10.3390/biotech9040024

DO - 10.3390/biotech9040024

M3 - Article

C2 - 35822827

AN - SCOPUS:85104145917

VL - 9

SP - 1

EP - 17

JO - High-Throughput

JF - High-Throughput

SN - 2571-5135

IS - 4

M1 - 24

ER -