Testing the translocation hypothesis and Haldane’s rule in Rumex hastatulus

Magdalena Kasjaniuk , Aleksandra Grabowska-Joachimiak , Andrzej J. Joachimiak

Abstract

The translocation hypothesis regarding the origin of the XX/XY1Y2 sex chromosome system was tested with reference to the F1 hybrids between two chromosomal races of Rumex hastatulus. The hybrids derived from reciprocal crossing between the Texas (T) race and the North Carolina (NC) race were investigated for the first time with respect to the meiotic chromosome configuration in the pollen mother cells, pollen viability, and sex ratio. A sex chromosome trivalent in the NC × T males and two sex chromosome bivalents in the T × NC males were detected. The observed conjugation patterns confirmed the autosomal origin of the extra chromosome segments occurring in the North Carolina neo-sex chromosomes. Decreased pollen viability was found in the T × NC hybrid in contrast to the NC × T hybrid and the parental forms. Moreover, only in the T × NC hybrid sex ratio was significantly female-biased (1:1.72). Thus, Haldane’s rule for both male fertility and male rarity was shown in this hybrid. According to the authors’ knowledge, R. hastatulus is just the second plant with sex chromosomes in which Haldane’s rule was evidenced.
Author Magdalena Kasjaniuk (FoAE / DoPBaS)
Magdalena Kasjaniuk,,
- Department of Plant Breeding and Seed Science
, Aleksandra Grabowska-Joachimiak (FoAE / DoPBaS)
Aleksandra Grabowska-Joachimiak,,
- Department of Plant Breeding and Seed
, Andrzej J. Joachimiak
Andrzej J. Joachimiak,,
-
Journal seriesProtoplasma, ISSN 0033-183X, e-ISSN 1615-6102, (N/A 70 pkt)
Issue year2019
Vol256
No1
Pages237-247
Publication size in sheets0.5
Keywords in EnglishRumex hastatulus, Sex chromosomes, Hybrids, Haldane’s rule, Meiosis, Fertility, Sex ratio
ASJC Classification2700 General Medicine; 1110 Plant Science; 1307 Cell Biology
DOIDOI:10.1007/s00709-018-1295-0
URL https://link.springer.com/content/pdf/10.1007%2Fs00709-018-1295-0.pdf
Internal identifierWRE/2019/12
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
Score (nominal)70
Score sourcejournalList
Publication indicators WoS Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.962; WoS Impact Factor: 2018 = 2.633 (2) - 2018=2.583 (5)
Citation count*
Additional fields
FinansowanieThis research was financed by the ministry of Science and Higher Education of the Republic of Poland (Contracts DS/KHRiN, BM 4110)
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