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Capsicum annuum with causal allele of hybrid weakness is prevalent in Asia.
- Source :
-
PloS one [PLoS One] 2022 Jul 08; Vol. 17 (7), pp. e0271091. Date of Electronic Publication: 2022 Jul 08 (Print Publication: 2022). - Publication Year :
- 2022
-
Abstract
- Reproductive isolation, including hybrid weakness, plays an important role in the formation of species. Hybrid weakness in Capsicum, the cessation of plant growth, is caused by two complementary dominant genes, A from C. chinense or C. frutescens and B from C. annuum. In the present study, we surveyed whether 94 C. annuum accessions had B or b alleles by crossing with C. chinense having the A allele. Of the 94 C. annuum accessions, five had the B allele, three of which were native to Latin America and two were native to Asia. When combined with previous studies, the percentage of B carriers was 41% in Japan, 13% in Asia excluding Japan, 6% in Latin America, and 0% in Europe and Africa. In addition, 48 accessions of C. annuum from various countries were subjected to SSR analysis. Clades with high percentages of B-carriers were formed in the phylogenetic trees. In the principal coordinate analysis, most B-carriers were localized in a single group, although the group also included b-carriers. Based on these results, we presumed that the B allele was acquired in some C. annuum lines in Latin America, and B-carriers were introduced to the world during the Age of Discovery, as along with the b-carriers.<br />Competing Interests: The authors have declared that no competing interests exist.
- Subjects :
- Alleles
Asia epidemiology
Japan
Phylogeny
Capsicum genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1932-6203
- Volume :
- 17
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- PloS one
- Publication Type :
- Academic Journal
- Accession number :
- 35802562
- Full Text :
- https://doi.org/10.1371/journal.pone.0271091