Intergeneric hybridization and C-banding patterns in Hordelymus (Triticeae, Poaceae)

R. von Bothmer; B.-R. Lu; I. Linde-Laursen

doi:10.1007/BF00939731

Intergeneric hybridization and C-banding patterns in Hordelymus (Triticeae, Poaceae)

R. von Bothmer
, B.-R. Lu
, I. Linde-Laursen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Crosses of Hordelymus europaeus (2n = 4x = 28) with four genera in the Triticeae were attempted. Adult hybrids were obtained in combinations with Hordeum bogdanii (2x), Hordeum depressum (4x), and Secale cereale (2x). The meiotic pairing was very low in the hybrids with H. bogdanii and Secale cereale (0.12 and 0.30 chiasmata/cell, respectively), whereas high pairing (9.90 chiasmata/cell) was found in hybrids with H. depressum due to autosyndetic pairing of H. depressum chromosomes. The chromosome complement of Hordelymus europaeus comprised 16 metacentrics, 8 submetacentrics, and 4 SAT-chromosomes. The Giemsa C-banding patterns of the chromosomes were characterized by small to minute bands at no preferential positions. It is hypothesized that Hordelymus europaeus may genomically be closest related to Taeniatherum and Psathyrostachys spp.

Original language	English
Journal	Plant Systematics and Evolution
Volume	189
Issue number	3-4
Pages (from-to)	259-266
ISSN	0378-2697
DOIs	https://doi.org/10.1007/BF00939731
Publication status	Published - 1994

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title = "Intergeneric hybridization and C-banding patterns in Hordelymus (Triticeae, Poaceae)",

abstract = "Crosses of Hordelymus europaeus (2n = 4x = 28) with four genera in the Triticeae were attempted. Adult hybrids were obtained in combinations with Hordeum bogdanii (2x), Hordeum depressum (4x), and Secale cereale (2x). The meiotic pairing was very low in the hybrids with H. bogdanii and Secale cereale (0.12 and 0.30 chiasmata/cell, respectively), whereas high pairing (9.90 chiasmata/cell) was found in hybrids with H. depressum due to autosyndetic pairing of H. depressum chromosomes. The chromosome complement of Hordelymus europaeus comprised 16 metacentrics, 8 submetacentrics, and 4 SAT-chromosomes. The Giemsa C-banding patterns of the chromosomes were characterized by small to minute bands at no preferential positions. It is hypothesized that Hordelymus europaeus may genomically be closest related to Taeniatherum and Psathyrostachys spp. ",

keywords = "Milj{\o}aspekter ved planteavl",

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year = "1994",

doi = "10.1007/BF00939731",

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journal = "Plant Systematics and Evolution",

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TY - JOUR

T1 - Intergeneric hybridization and C-banding patterns in Hordelymus (Triticeae, Poaceae)

AU - Bothmer, R. von

AU - Lu, B.-R.

AU - Linde-Laursen, I.

PY - 1994

Y1 - 1994

N2 - Crosses of Hordelymus europaeus (2n = 4x = 28) with four genera in the Triticeae were attempted. Adult hybrids were obtained in combinations with Hordeum bogdanii (2x), Hordeum depressum (4x), and Secale cereale (2x). The meiotic pairing was very low in the hybrids with H. bogdanii and Secale cereale (0.12 and 0.30 chiasmata/cell, respectively), whereas high pairing (9.90 chiasmata/cell) was found in hybrids with H. depressum due to autosyndetic pairing of H. depressum chromosomes. The chromosome complement of Hordelymus europaeus comprised 16 metacentrics, 8 submetacentrics, and 4 SAT-chromosomes. The Giemsa C-banding patterns of the chromosomes were characterized by small to minute bands at no preferential positions. It is hypothesized that Hordelymus europaeus may genomically be closest related to Taeniatherum and Psathyrostachys spp.

AB - Crosses of Hordelymus europaeus (2n = 4x = 28) with four genera in the Triticeae were attempted. Adult hybrids were obtained in combinations with Hordeum bogdanii (2x), Hordeum depressum (4x), and Secale cereale (2x). The meiotic pairing was very low in the hybrids with H. bogdanii and Secale cereale (0.12 and 0.30 chiasmata/cell, respectively), whereas high pairing (9.90 chiasmata/cell) was found in hybrids with H. depressum due to autosyndetic pairing of H. depressum chromosomes. The chromosome complement of Hordelymus europaeus comprised 16 metacentrics, 8 submetacentrics, and 4 SAT-chromosomes. The Giemsa C-banding patterns of the chromosomes were characterized by small to minute bands at no preferential positions. It is hypothesized that Hordelymus europaeus may genomically be closest related to Taeniatherum and Psathyrostachys spp.

KW - Miljøaspekter ved planteavl

U2 - 10.1007/BF00939731

DO - 10.1007/BF00939731

M3 - Journal article

SN - 0378-2697

VL - 189

SP - 259

EP - 266

JO - Plant Systematics and Evolution

JF - Plant Systematics and Evolution

IS - 3-4

ER -

Intergeneric hybridization and C-banding patterns in Hordelymus (Triticeae, Poaceae)

Abstract

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