Open AccessGenetic characterization of hybridization between the New Zealand everlastings Helichrysum lanceolatum and Anaphalioides bellidioides (Asteraceae: Gnaphalieae)
Author(s) -
SMISSEN ROB D.,
BREITWIESER ILSE,
WARD JOSEPHINE M.
Publication year - 2007
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2007.00632.x
Subject(s) - biology , introgression , hybrid , asteraceae , botany , population , genetics , gene , demography , sociology
Intergeneric hybridization between the endemic New Zealand species Helichrysum lanceolatum and Anaphalioides bellidioides (Asteraceae: Gnaphalieae) at two Banks Peninsula populations was investigated by DNA sequencing and amplified fragment length polymorphism fingerprinting. Crosses in both directions have contributed to the generation of the F1 hybrids, but in the study season hybridization was far more common with H. lanceolatum as the maternal parent. F1 hybrids have reduced, but considerable, fertility and seed collected from them includes back‐crosses. Two hybrid plants sampled from the wild appear to be back‐crosses to H. lanceolatum. Despite back‐crossing, introgression was not demonstrated and is at most limited in scope. These results also corroborate important roles for small population size and rarity in the formation of hybrid lineages in New Zealand’s everlastings. © 2007 Landcare Research New Zealand Ltd. Journal compilation © 2007 The Linnean Society of London, Botanical Journal of the Linnean Society , 2007, 154 , 89–98.