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2014 ; 166
(4
): 1724-32
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Insights into conifer giga-genomes
#MMPMID25349325
De La Torre AR
; Birol I
; Bousquet J
; Ingvarsson PK
; Jansson S
; Jones SJ
; Keeling CI
; MacKay J
; Nilsson O
; Ritland K
; Street N
; Yanchuk A
; Zerbe P
; Bohlmann J
Plant Physiol
2014[Dec]; 166
(4
): 1724-32
PMID25349325
show ga
Insights from sequenced genomes of major land plant lineages have advanced
research in almost every aspect of plant biology. Until recently, however,
assembled genome sequences of gymnosperms have been missing from this picture.
Conifers of the pine family (Pinaceae) are a group of gymnosperms that dominate
large parts of the world's forests. Despite their ecological and economic
importance, conifers seemed long out of reach for complete genome sequencing, due
in part to their enormous genome size (20-30 Gb) and the highly repetitive nature
of their genomes. Technological advances in genome sequencing and assembly
enabled the recent publication of three conifer genomes: white spruce (Picea
glauca), Norway spruce (Picea abies), and loblolly pine (Pinus taeda). These
genome sequences revealed distinctive features compared with other plant genomes
and may represent a window into the past of seed plant genomes. This Update
highlights recent advances, remaining challenges, and opportunities in light of
the publication of the first conifer and gymnosperm genomes.