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Frequency of androgenesis in Poa arachnifera × P. ligularis and P. poiformis hybridizations
Author(s) -
Kindiger Bryan
Publication year - 2015
Publication title -
grassland science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 19
eISSN - 1744-697X
pISSN - 1744-6961
DOI - 10.1111/grs.12090
Subject(s) - biology , ploidy , interspecific competition , interspecific hybridization , botany , genetics , hybrid , gene
The rapid generation of haploids in most species remains a relatively infrequent event, but is considered an important tool for the development of homozygous lines and an approach for cytoplasmic transfer across related species. P oa arachnifera ‘Texas bluegrass’ is known to occasionally produce androgenic haploid recoveries following hybridization with P oa secunda . However, little information regarding the frequency of such behavior following hybridization with other Poa species is available. This study was undertaken to determine the frequency of androgenic haploids following interspecific hybridization of P . arachnifera × Poa ligularis and P. arachnifera × Poa poiformis . The P. arachnifera × P. ligularis hybridizations exhibited a frequency of androgenic dihaploids ( ADH ) at 1.00%; where the P. arachnifera × P. poiformis hybridizations indicated a frequency of 0.69%. Results from this study suggest ADH generation is an infrequent but consistent behavior likely found in sexual P. arachnifera .