Home About Browse Search
Svenska


Diversity and population structure of Nordic potato cultivars and breeding clones

Selga, Catja and Chrominski, Pawel and Carlson-Nilsson, Ulrika and Andersson, Mariette and Chawade, Aakash and Ortiz, Rodomiro (2022). Diversity and population structure of Nordic potato cultivars and breeding clones. BMC Plant Biology. 22 , 350
[Research article]

[img] PDF
3MB

Abstract

Background: The genetic diversity and population structure of breeding germplasm is central knowledge for crop improvement. To gain insight into the genetic potential of the germplasm used for potato breeding in a Nordic breeding program as well as all available accessions from the Nordic genebank (NordGen), 133 potato genotypes were genotyped using the Infinium Illumina 20 K SNP array. After SNP filtering, 11 610 polymorphic SNPs were included in the analysis. In addition, data from three important breeding traits – percent dry matter and uniformity of tuber shape and eye – were scored to measure the variation potato cultivars and breeding clones.Results: The genetic diversity among the genotypes was estimated using principal coordinate analysis based on the genetic distance between individuals, as well as by using the software STRUCTURE. Both methods suggest that the collected breeding material and the germplasm from the gene‑bank are closely related, with a low degree of population structure between the groups. The phenotypic distribution among the genotypes revealed significant differences, especially between farmer’s cultivars and released cultivars and breeding clones. The percent heterozygosity was similar between the groups, with a mean average of 58–60%. Overall, the breeding germplasm and the acces‑ sions from the Nordic genebank seems to be closely related with similar genetic background.Conclusion: The genetic potential of available Nordic potato breeding germplasm is low, and for genetic hybridiza‑ tion purposes, genotypes from outside the Nordic region should be employed.

Authors/Creators:Selga, Catja and Chrominski, Pawel and Carlson-Nilsson, Ulrika and Andersson, Mariette and Chawade, Aakash and Ortiz, Rodomiro
Title:Diversity and population structure of Nordic potato cultivars and breeding clones
Series Name/Journal:BMC Plant Biology
Year of publishing :2022
Volume:22
Article number:350
Number of Pages:12
ISSN:1471-2229
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding
Keywords:Genebank, Genetic diversity, Population structure, Potato, Potato breeding
URN:NBN:urn:nbn:se:slu:epsilon-p-118302
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118302
Additional ID:
Type of IDID
DOI10.1186/s12870-022-03726-2
Web of Science (WoS)000826934800001
ID Code:28466
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:18 Aug 2022 11:29
Metadata Last Modified:18 Aug 2022 11:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits