Recognizing Developmental Stages in Southern Pine Flowers:  The Key to Controlled Pollination

Bramlett, David L.; O''Gwynn, Claude H.

doi:10.2737/se-gtr-18

Cited by 11 publications

(2 citation statements)

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“…At stage 4 (FS4), the cone is fully developed with ovules, ready to be pollinated. The developmental stages presented in Figure 2 for the female cone are consistent with the previously defined stages [51].…”

Section: Histological Analysissupporting

confidence: 87%

Differentially Expressed Transcription Factors during Male and Female Cone Development in Pinus halepensis

et al. 2022

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The molecular regulation of induction and development of reproductive organs is well established in angiosperms, while it is slowly accumulating in gymnosperms. Here, we conducted comparative transcriptomic profiles at different stages of male and female cone development in Pinus halepensis. Our aim was to reveal transcription factor encoding genes involved in reproductive induction and development. For accurate developmental stage identification, histological analysis preceded the molecular analysis. The flowering induction genes FT/TFL were expressed mainly at the late developmental stages of the male cone, suggesting involvement in vegetative bud dormancy instead of flowering induction. The male cone development was associated with the expression of the C-class PhMADS2, and the B-class genes PhDAL11 and PhDAL13, while the female cone development was associated with the expression of the C-class MADS1 and DAL14 genes. This study adds valuable knowledge to the profile of transcription factors and MADS-box genes regulating cone development in gymnosperms.

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Section: Histological Analysissupporting

confidence: 87%

Differentially Expressed Transcription Factors during Male and Female Cone Development in Pinus halepensis

et al. 2022

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“…The initial counts should be made shortly after the female flowers have emerged through the bud scales (stage 3 to stage 4 of development, Bramlett and O'Gwynn 1980) when they are easily distinguished from vegetative buds. If desired, a separate sample can be made of the second-year strobili present on the same sample trees, but only first-year strobili should be counted on the ssme trees during subsequent years.…”

Section: Selection Of Sample Strobilimentioning

confidence: 99%

Estimating Cone and Seed Production and Monitoring Pest Damage in Southern Pine Seed Orchards

Fatzinger¹,

Muse²,

Miller³

et al. 1988

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Field sampling procedures and computer programs are described for monitoring seed production and pest damage in southern pine seed orchards. The system estimates total orchard yields of female strobili and seeds, quantifies pest damage, determines times of year when losses occur, and produces life tables for female strobili. An example is included to illustrate the sampling procedures and the operation of user-friendly computer programs.

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The Female Gametophyte Inside the Ovule

2009

Conifer Reproductive Biology

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Recognizing Developmental Stages in Southern Pine Flowers: The Key to Controlled Pollination

Cited by 11 publications

References 0 publications

Differentially Expressed Transcription Factors during Male and Female Cone Development in Pinus halepensis

Differentially Expressed Transcription Factors during Male and Female Cone Development in Pinus halepensis

Estimating Cone and Seed Production and Monitoring Pest Damage in Southern Pine Seed Orchards

The Female Gametophyte Inside the Ovule

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