Ploidy variation and agronomic performance of F₁ hybrids of tetraploid and diploid forms of Humulus lupulus L.

ABSTRACT: Humulus lupulus (2n = 2x = 20) as a source of hop resins, essential oils and polyphenols has value in brewing, pharmacy and cosmetology. Conventional crossing between tetraploids of 'Sybilla' and diploid males were performed to obtain F₁ hybrids. Cytological studies revealed that 83.8% of the hybrids were triploids (2n = 3x = 30), 15.2% were aneuploids in which the chromosome number ranged from 28-32. Tetraploids (2n = 4x = 40) and diploids were also observed, which indicates numerous disturbances of gametogenesis of the parental forms. STS markers specific for male plants showed that females outnumbered male individuals among the F₁ hybrids, which is in accordance with the distribution of sex ratio characteristic for diploid hybrids of H. lupulus. Femal

SUBMITTER: Trojak-Goluch A 

PROVIDER: S-EPMC7272252 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature